Does it seem like Twitter‘s been changing a lot lately? It seems like they just introduced the @yourusernamehere tab, and now they’ve moved on to @Connect and #Discover instead.

(Not everyone has the new format yet; I don’t, at least on the website, but I am seeing the mobile version on my iPhone).

Mashable has a nice slideshow that explains the new design and structure. And if you’re wondering why it happened, Edelman Digital’s blog points out that it should nicely support Twitter’s new brand pages.

And if you think Twitter’s changed a lot in recent months, take a look at the homepage (slide 6) when it launched in 2006.