Inglês na Ponta da Língua, blog em português que esclarece dúvidas sobre expressões, etc
www.wallwisher.com, digital post-its for all sorts of things
8 Useful and/or Fun Twitter Tools
8 Useful and/or Fun Twitter Tools I've been on Twitter since February 19, 2007 and to celebrate my 10,000th follower, I'd like to share some interesting Twitter tools. When Did You Join Twitter? No, I don't recall the exact date I first signed into Twitter. I typed my username into whendidyoujointwitter.com, and it let me know when I created my account.