Seriously, solve that problem or have a VERY credible story on how you could in a very capital efficient manner with a little money. If you aren't growing organically (and FAST), you need to very critically ask yourself why. If your solution is YCombinator, TechStars, getting TechCrunched, etc-- you need to realize that none of those things generate growth. If you can't grow 100 visitors to 1000, you're not going to fare much better with the 10k uniques that a TechCrunch post gives you.
My gut tells me that the only people who want to search a database of ONLY Flash sites are Flash designers/developers... The rest of the world doesn't want a vertical search engine-- they just want the best results (whether it's Flash, HTML, or a PDF).
Maybe there's a niche business there, but there almost certainly isn't an investor on the planet who would fund it without proof of dramatic traction and growth. We're fundraising right now, have the YC stamp, a great growth rate, paying customers, bafflingly good PR coverage, and we still get plenty of investors who balk due to the perceived size of the opportunity.