Vayable (YC12) - coney island tour (first page) HelloFax (YC11) - fax (first page), google fax #4, Lanyrd.com (YC11) - mobile conferences #1, ux conferences #2

Vayable (YC12) - coney island tour (first page) HelloFax (YC11) - fax (first page), google fax #4, Lanyrd.com (YC11) - mobile conferences #1, ux conferences #2, + hundreds of other high value kws TutorSpree (YC11) - tutor (first page), private tutoring #1, ZeroCater (YC11) - catering in sf (first page) MailGun (YC12) - email api (first page) With some time, I could easily find better examples. What you'll notice with these is that they are succeeding not by trying to rank for a handful of keywords, but hundreds or thousands of keywords. Organize and curate a collection of useful content of interest to your customers, and you will get Google to rank it. Most large aggregations of fill-in-the-blank are not well SEO optimized. If I were building something, I'd look at a niche outside of travel, real estate, and employment, and create an aggregation around that. Look at dogvacay.com -- launched in March 2012 ranked #1 for "dog boarding" in many markets.