Enter Free Rainbow Tables.com
Nearing their first Terabyte of tables, and all for free — No strings attached.
The tables are generated by their community using DistrRTgen, a distributed Rainbow Tables Generator. Breaking tables down into parts, the program then assigns the parts to the many users running the DistrRTgen client. The parts are completed and uploaded back to the server where they are compiled, compressed, and made available for download to anyone and everyone with a hash that needs cracking.
Progress can be followed, as well as User Stats.
The site is currently focusing on NTLM tables to give Windows Vista a warm welcome!"