This week I’ve stumbled upon three sites that made Twitter a heck of a lot more usable. These add-ons, which require you to log in with your Twitter username and password, have boosted my virtual self-esteem with compliments on my Twitter style. They’ve allowed me to vengefully un-follow dozens of Twits who had either given up on the ADHD social networking service. And they’ve liberated me from tricky oppressors I’d been following only out of mistaken loyalty, assuming they were following me. [More]