How much is LinkedIn really useful in terms of job search? some information related to success rate or similar quantification will be appreciated!

I am not sure of the specifics you're asking, it seems like a lot of technical data. This might help in your search for these statistics though:
http://jobsearch.about.com/od/networking/a/linkedin.htm
http://www.forbes.com/sites/nextavenue/2014/01/21/how-linkedin-is-thwarting-your-job-search/
http://mashable.com/2014/06/19/linkedin-job-search-app/
http://www.cio.com/article/2403150/linkedin/10-linkedin-tips-to-boost-your-job-search.html

I found this blog post with a bunch of statistics for you:

http://expandedramblings.com/index.php/by-the-numbers-a-few-important-linkedin-stats/#.U7axqfldWSo

I don't have the numbers per se for Linkedin but I can image that the number of applicants through the network increases everyday. I've recently finished Dan Miller's book "48 Days to The Work You Love" I believe he mentioned something along the lines of 8 out of 100 applicants get hired through online means whether it's Linkedin, Craigslist etc..

Usually once the job hits the general public 9 times out of 10 the position is close to being filled. Companies I believe have to receive a certain amount of applicants before they make a decision. (My guess is to rule out discrimination)

Hope this helps a little.

Think of LinkedIn as a place where you want to be hunted; the world of resumes and job boards as the place where you want to do hunting. By being "attractive" to employers and headhunters you are more likely to be reached out to, to appear to be the desirable "passive job applicant" and have opportunities presented to you, rather than you chase down jobs.

If you ask me, LinkedIn is helpful when it comes to job searches. It's no secret that LinkedIn is the top professional social networking site with 133 million users in the U.S. alone and reaching 200 countries and territories around the world. Per the Jobvite Recruiter Nation Survey, 87 percent of recruiters use LinkedIn as part of their candidate search. As a professional or student, it's the popular place to network and look for job opportunities; even former U.S. President Barack Obama once joked during a TV press conference that he would join LinkedIn to help him land a job after his term was up!
The issue is that if you're only updating your profile now and then, you're not fully utilizing all LinkedIn can do for you, which includes taking hours off of your job search. Below are some tactical tips on how you can leverage LinkedIn to its fullest to expand your professional network and land your next job.
On CBS This Morning, LinkedIn's CEO noted the following three tips to maximize the potential of your LinkedIn profile:
1. Keep your profile up to date.
2. Be comprehensive about current skills and objectives.
3. Highlight your recent experience.
When asked what was most important about a candidate's profile and how to make the best use of the platform, Weiner responded that first and foremost "authenticity" was important.
How successful it is depending on how you use it to search jobs. If you follow these tips it will be phenomenally successful.
1. Keep your profile up to date. LinkedIn members with a profile picture are 14 times more likely to receive page views, while those who post skills are 13 times more likely to have profile views compared to those who don't, per LinkedIn's blog. There are more than 45,000 skills to choose from on LinkedIn to beef up your profile, so if you want Gone Bananas to notice you, make sure to regularly update your profile, add a profile photo, and include your notable skills.
2. Be comprehensive about current skills and objectives. To ensure you are using LinkedIn to find a job correctly, do not leave anything out about your current skills and objectives. Use your headline to share your main objective if it makes sense and add all your skills to your page. You do not want it to look like you haven't updated your page in a while, as recruiters and companies might pass you by if it does.
3. Highlight recent experience. You want your recent experience evident to anyone who views your page, especially when you are actively engaging with connections and companies to land a job — which is the reason you're likely reading this post, after all.
4. Update your headline. Your photo, name, and headline (which is listed below your photo) are the only items people see when they do a search. Your headline should stand out and highlight what you do or what type of position you are looking for. "HR professional connecting employees with management" are examples of headlines that are clear and might grab attention when compared to plain-Jane headlines like "Chemical engineer in the public sector."
5. Let people know you are available. If you can announce the fact that you are looking for a job, do so. Use your headline to make the announcement. For example, "Writer seeking businesses in need of a friendly ghost (or ghost writer)" and "Petroleum engineer ready to strike oil and make you rich" might catch a recruiter or hiring manager's attention.
6. Build your network to the 1st degree. Your connections can exponentially increase your exposure and access to other connections. LinkedIn makes it easy to connect with people you know by importing your contact lists from sites such as Gmail.
7. Research the companies you are interested in and follow them. LinkedIn makes it easy to find and follow companies. If you haven't already done so, make a list of the companies you'd like to work for and follow them on LinkedIn. This will help you stay in the know about company news and new positions as they become available.
8. Use the Advanced Search. Use LinkedIn's Advanced Search option and do a search on your favourite companies. Find out who of your connections is associated with Gone Bananas, for example, and make a list. You can reach out to these people depending on their connection with the company. If they work there, you can ask questions about the company culture. If they are a client or service provider, you can ask what it is like to do business with them. Get creative and have fun doing your research so you can navigate how to best approach the company for a job when you're ready.
9. Ask for an introduction. Once you are ready to reach out to Gone Bananas, you can ask your connection(s) to make an introduction to someone they are connected to within the organization.
10. Look for alumni associated with your college or university. Doing a search for your college or university is a great way to connect with alumni who went to the same school as you. You can reach out to them and share this common interest to help you land your next job.
11. Be more than a wallflower. Be active on LinkedIn, and as Weiner suggests, be authentic and current. Post any articles you write, videos you post, and so on, as updates. Get involved with groups and interact with others on LinkedIn. The more you interact and post as a professional, the more you will be noticed and build recognition.
12. Get involved in LinkedIn Professional Groups. Do an Advanced Search to identify professional groups in your area and get involved. This will help expand your network, show your expertise (when you engage in online conversations and answer questions that come up), and possibly connect you to the organizations you want to work for in the future. When researching groups, you want to participate in groups that have recent activity. Otherwise, you might be wasting your time if a group does not have daily or regular interaction online.
13. Research your future boss and executive team. Before going in for an interview, you can use LinkedIn to research hiring managers and interviewers to find out about their likes, interests, and more. You can leverage this information during your interview to create relatability and show that you have done your homework.
14. Network after business hours. According to Mashable, statistics show that only 8.33 percent of Americans use LinkedIn during working hours compared to other social media sites, such as Facebook (with almost 30 percent of people using it during work hours), indicating that you might get more interaction and exposure if you update your status, network, and connect with people and companies after business hours on LinkedIn. Test this out at different times of the day to see what works best in getting responses and other interactions.
Besides if you do have any questions give me a call: https://clarity.fm/joy-brotonath

LinkedIn is a professional networking platform that allows users to connect with colleagues, employers, and potential job opportunities. In recent years, LinkedIn has become a popular tool for job seekers, but how effective is it in terms of job search? Here's some information related to success rates and similar quantifications:

Job Postings: LinkedIn has over 20 million job postings, making it one of the largest job search platforms. This provides job seekers with a vast number of opportunities to explore.

Job Matching: LinkedIn uses its algorithms to match job seekers with relevant job postings. This increases the chances of finding a job that matches their skills, experience, and interests.

Networking: LinkedIn is a powerful networking tool that allows users to connect with professionals in their industry, potential employers, and even recruiters. This can help job seekers gain insights into the job market, build relationships, and increase their chances of landing a job.

Success Rates: While there are no official success rates for LinkedIn job searches, various studies have shown that it can be an effective tool for finding a job. According to a survey by Jobvite, 77% of recruiters use LinkedIn to find candidates, and 48% of job seekers have reported that LinkedIn helped them find a job.

Premium Services: LinkedIn offers premium services, such as LinkedIn Premium and LinkedIn Learning, which can provide additional resources and tools for job seekers. These services can help job seekers gain more visibility and access to job postings, as well as develop new skills that are in demand in the job market.

I really personally think its vital and useful.

LinkedIn is definitely an important platform for job seekers, as well as for companies looking to fill positions. However, it's important to note that the success of a job search on LinkedIn depends on various factors.

In terms of the percentage contribution of recruitment happening through LinkedIn, it's difficult to give a specific number as it can vary greatly by industry, company size, and location. Some studies have shown that LinkedIn has become a top source for recruitment, with a majority of companies using the platform for recruiting purposes. However, it's important to note that LinkedIn is not the only source of recruitment and companies often use multiple channels to find candidates.

As for the success rate of applicants applying to posted jobs on LinkedIn, this can also vary depending on the industry and specific job. It's important to have a strong profile and a well-crafted resume to increase the chances of being selected for an interview. However, the success rate also depends on the competition for the job and the qualifications of other applicants.

Overall, while LinkedIn is an important platform for job search, it's important to keep in mind that success on the platform depends on various factors. Building a strong profile, networking, and actively applying to job postings can increase the chances of success. It's also important to use multiple channels for job searches and not rely solely on LinkedIn.