All? of YC investments--left sidebar
crunchbase.com
crunchbase.com
Of course, that content/awareness/traffic would also help spread the word about YC. I'm still stunned at how many geeks I talk to who have never heard of it.
This hit me when Drew (Houston, Dropbox) had to tell geeks about it here as if it were still 2005: http://vimeo.com/9100565
Doesn't this very website serve that purpose?
YC has a HUGE marketing advantage in PG (and his amazing and linkworthy essays), Jessica (and her amazing book) and the success of the portfolio. But it's not an unassailable position.
edit: Duh-- news.yc is another incredible marketing asset that YC has!
But apparently not, since pg replied saying he was working on a portfolio page and jl is working on blog posts. I concede.
http://blog.awesomezombie.com/2009/12/analyzing-y-combinator...
Although there are a few '09 ones which have gone public since my post which I haven't got around to adding yet.