http://i.imgur.com/3FMXV.jpg
Recently Blizzard updated Starcraft to version 1.5 and changed the UI and added several interesting features. Snipped from the article:

"Patch 1.5.0 Arcade has finally arrived, and it brings sweeping changes to the Battle.net experience. The new Arcade offers the StarCraft community an exciting new way to discover, rate, and play a wide array of community and Blizzard created games, as well as a plethora of options that will help you swiftly find the kinds of experiences you’re looking for. Meanwhile, the StarCraft menu has consolidated all the competitive and cooperative StarCraft II gameplay you’re familiar with into one easy to navigate place. With the new Battle.net UI, menus are now easier and faster to navigate, and a suite of new Editor tools provide game creators the power to bring their visions to life like never before."

After trying it out I have to say the new 1.5 UI is much, much better than the previous one. It seems less cluttered and makes more sense to my eye. Its also much easier to navigate through new and popular user created maps. Blizzard has a few maps in the mix as well such as Auir Chef, Starjeweled and Left 2 Die. Ive only played Starjeweled, which is a cross between Bejewled and ... DoTA. Sounds odd, but its quite a bit of fun. Wasn't great my first try and as such was verbally assaulted by my team members, that all said, it was quite a bit of fun :)

For more details head over to Battle.net:

http://us.battle.net/sc2/en/blog/6823327