Hanniversary will ensure that you do not forget your twitter anniversary. This service will remind you, when you get close to special tweets count. Just follow @hanniversary to get started.
There is no need to sign-up at all.

profiles.im gives you a full, customizable public profile to go with your Twitter account. Just log in with your twitter...
Social Whois is a proof of concept that a better Social Media can exist ; a social media based on...