Would this be considered a public stock offering? I remember learning in class that this sort of stuff (seeking funding publicly on the web) may result in some legal trouble. I may be wrong though.
What you can't do is take money from non accredited investors (ie., the public). But announcing in public that you'll be looking to raise money from professional angels (who are accredited) is ok.
IANAL, but I would be careful making such a public post, due to SEC regulations disallowing public notice of equity investment opportunities of private companies.
