SEOClerks - The largest SEO Marketplace on the planet. - SEOClerks
The Y Combinator Database - The definitive database of YC companies with all the metrics
Picoworkers - Earn money from doing short, easy tasks similar to Microworkers. Picoworkers is the best alternative to Microworkers I ever find.
Startup School - How to start a startup, by Y Combinator
SerpClix - SerpClix is a click exchange network used to send more real clicks to your Google SERP. You can click to earn money or buy clicks to rank higher on Google.
Y Combinator Companies - Interactive list of all 1000+ YC companies