Search all state gov site at once

It used to be that to search federal and state sites you could go to google.com/unclesam. But that has closed (for more information on this click here). However, the people at Research Buzz have created a nifty work around that allows you to search all state government sites. http://researchbuzz.me/2012/07/11/limit-your-google-search-to-official-us-state-web-sites/

Could be helpful.

resource for business startup, SEC filings

http://www.formds.com/

FormDs has information on startups and growing companies of all kinds - stealth mode tech startups... even hedge funds startups.
Free Resource for locating SEC Filings


You can search for people, companies and industries, or by location.