According to various sources, the final stimulus bill (in the form of the conference report) was made publicly availabe last night around 10:45 pm through the web sites of the House Appropriations Committee and the House Rules Committee. The House just passed the conference report less than an hour ago.

ProPublica has some of the best resources for the stimulus bill including this page where you can download all the parts of the final 1000+ page bill. Also good from ProPublica is their detailed chart of spending provisions in the final bill.