There are a few online rainbow sites.
creating your own is timeconsuming and takes a lot of diskspace.
and lately not very effective due the salted passwords.
(Salted means, the use random chars over a md5 hash so it's never the same.
Like with WPA key's (it's MD5 hash together with the SSID code, no never the same. there are a few lists with standard SSID's and wordlists. but the change you can use it is very small).
so rainbow tabel is great and fast.. but I never used it because of the problems with salted hashes. most CMS and forums using salted hashes or codes like sha1(md5(password)) or md5(md5(password)).
and a rainbow table for lowercase characters a-z and 0-9 for 9 character passwords is about 160 gig. and most people use longer passwords.
so getting a good dictonary and bruteforcing is way much better
(using CUDA on your graphicscard and you can get some 260mil a sec. or faster)
My girlfriends laptop is running on almost 100mil hashes a second (quad core p4)
free rainbowtables;
http://www.freerainbowtables.com/tables/I'm a member of them and I used to help with bruteforcing.
But I don't see a future in rainbow..
