There's also a procedure called Essure, which involves inserting tiny coils into the Fallopian tubes through the cervix to prevent conception. It was approved in 2003, but is coming under fire now because women have had perforated Fallopian tubes. In fact, the activist Erin Brockovich is leading the charge to have it banned from use.
I considered this procedure as a form of permanent birth control, but with the recent problems about it coming to light, I think I made the right decision to wait and see how it did. I certainly don't want anything perforated! That's a bad outcome.