Any B2B manufacturer or publisher involved with public sector bidding and RFPs knows the model for finding these opportunities has dramatically changed over the last 5 years. The traditional methods of 'formal' postings in local papers or state publications has vanished. So too, has been the time honored tradition of keeping a 'bid list' to mail out formal documents.
Blame the economy and the web. All states now recognize a 'web posting' as a legitimate public posting that meets the fiduciary responsibilities of the city/town or state. While this makes it simpler to get the bid out, it creates a mess for those trying to find and respond.
Federal bids have a standardized format and set process for posting, however, when you move down to the state and local level the wheels fall off.
Yeoman tracks over 50 different bid and RFP sites and all of them have slightly different formats for posting and actively block deep Google crawling of their web. For these sites, you can't just '