...
inputs.io takes you to the Electronic Frontier Foundation (a worthy group, but I found NO mixing service there).
EDIT: And I just read a good part of the
bitcoinfog.com thread, that gave me no confidence in them either.
***
I am interested in both worthwhile BTC companies as a small investment as well as good mixing services (
sharedcoin.com and
bitmixer.io have both worked OK for me, although I did read that sharedcoin may have security leaks...).
A really solid (professional and honest) mixing service might make a lot of money, hey, just sayin´......