Will using both Google Adwords Auto-Tagging AND Manual Tagging with UTM variables create any tracking problems in Google Analytics?

In my experience, starting out testing one against the other is ideal (i.e. running campaigns on each and seeing which performs better). It's also important to look at what your immediate and long term goals are for the spend. Are you trying to sell them something now, keep them engaged for a later release of a product, or some other action? The key thing to note is that depending on what you're selling and what your keywords are, the bar can be a lot lower in terms of your bid per click if you go with Facebook Ads. Additionally: you can hyper target your audience with Facebook Ads like whoa (Google Ads are more limiting). Ex: I ran both sets of ads for a new line of ballet inspired barre-wear (targetting both ballet dancers and barre students). Both Facebook and Google Ads were linked to the sales page. For Google Ads: I used keywords like "barre-wear" (low search volume) "ballet attire" "activewear" (limited relevance) and about 20 other related terms. The spend to results ratio here was underwhelming. Keep in mind: I've only been working with Google Ads for a couple of years now. Better results are possible if you've got someone with 5+ years of experience who knows the system backwards and forwards, but for the most part, Google Ads are not DIY friendly if you want serious results. For Facebook Ads, I did 2 campaigns: 1. Ballet Dancers: I targetted women in major cities (NY, Chicago, Atlanta, Los Angeles), who were under 26 and fans of ballet companies and schools in their city, and also those who were fans of major dance supply companies. 2. Barre Students: I targetted women nationwide who were between 26 and 52, married, above average household income, fans of barre studios in their area, fans of Lululemon Athletica (high end activewear brand), and did a couple of variations on different hobbies and activities to target specifically stay at home moms or wives who were active. The results: $100 in ad spend // over 150 clicks to the product page // 20 new email newsletter signups // 3 immediate sales // 2 follow up sales within that week (so for a $100 product the ad yielded about $500 in sales that week from individuals who could be potential customers again (and 20 new people to market to for future sales).

Try Intercom.io You get visitor level information on how active they are etc.

It's isn't just you. Adobe reported that "over $21.8 billion in global ad revenues have been blocked/lost so far in 2015." largely thanks to mass adoption with the AdBlocking software :) 21 million users in 2009, to 198 million active global users as of June 2014-likely overtaking the other comps entirely.

It all depends on whether they are all selling the same thing to the same persona. If yes, then combine all the campaigns into one adwords account, which feeds into one analytics account. That way they can get feedback on the effectiveness of different keywords, ads, etc. more quickly (because there will be more data, from all the different websites, all in one place, for a particular keyword). If they are each selling different things, or to different personas, then don't combine their accounts, because it will just make things confusing and not useful from an analysis perspective.

Depending on the data, you can either use one of the following. Google Spreeshet / Charts: I use this for real time analytics generated from our system to quickly visualize the information. There's a simple JSON API that lets you pull that in although their is limits on the amount of rows you can use. Geckoboard: They provide dashboard type widgets you can configure to show you real time trends and information. Highcharts.com: Simple chart generator. We use this in our Admin Dashboard to visualize all our data include cohorts and weekly KPI's. I like simple and free.