Pick a memorable, intuitive name that fans find easy to recommend to their friends on the phone (voice and text). Consider the name not just in the abstract but in terms of a domain purchase.

I keep waiting for somebody to use Pennies.net for a site like the one you describe. Full disclosure: I own it. But I'm pointing to it mainly by way of example and not as a sales pitch.

Take some time to plan for a cohesive brand identity. Your goals, site design, and written style should match one another and offer something clear to visitors.

These things don't lead directly to success (your content, publicity, and monetization strategy do that); but the lack of them hampers many a site or small business.

Good luck!