I just noticed that the SEC’s EDGAR data base now has a beta version full text search feature (see here). I’m not sure how well it works (the search of my name came up empty, but I know I’m on the cover pages of some S-1s and S-4s from my practice days), but it’s a welcomed development. The FAQ includes the following:
We are still developing EDGAR Full Text Search. We plan to enhance this service on the basis of user feedback. Please email your comments and suggestions for improvement to email@example.com.
Note limitation on EDGAR full text searching: “This page allows you to search the full text of EDGAR filings from the last two years.”