Was waiting to receive word from Y Combinator before commenting here! Just received the email, was not accepted. I run a web based magazine, DotSauce.com, an authority site in the domain name industry. Additionally DotSauce reaches out to front-end developers, WordPress enthusiasts and the online marketing crowd.
My hope in applying was really to be involved in the experience of Y Combinator. The funding would have been well received bonus and used to propel DotSauce to the next level, along the lines of SmashingMagazine.
I'm going to pursue private funding from contacts in the industry now that I've been inspired to do so!