You will be more likely to get funding from angels if you have launched and can show some sort of growth. So if you can get to launch on the money you have, do that. Then find angels by asking acquaintances who work for startups to introduce you to their angel investors. They will do it if they think highly of your product.
You'll start hearing the same thing again and again. Expect much more focus on how you're going to get to what market than you would for a yc app. Google "angel forum" for starters, make a list and start applying. Email me for more specifics. In car on iPhone right now.
what bout your former colleagues at Scribd? seems like they may know a person or two.
when do we get to see a preview?
That's a good idea. We'll ask them.
We'll be able to show a preview when it's ready for everyone else, though earlier private showings remain possible. I hope not to jinx myself, but I think it will be fairly soon, within the month, or by early summer.
But you're absolutely right. We need to pitch more. And we'll need to listen, and ponder, and most of all, build.
We have in fact located to SV (or, Berkeley, rather). If you have any tips as to which angel groups would be most suitable to approach, we'd love to hear from you.