I have so many "throw away" email addresses from hotmail and such, that I have forgotten most of them. I used them heavily when I first started online, before I got domains for myself. Well, I just joined (another) a social network that is primarily used for networking with others in your career area. It's not for "making friends" like others, but for posting your profile as a resume (kinda thing). Anyway, this isn't an affiliate post - but it brought me to thinking about my contact lists. I have so many old, outdated contacts within my address book, I just want to delete them all. What programs or services do you all use to synchronize and manage your contacts?