Your Google+ profile ID is a horrifying string of meaningless numbers. For example, mine is 111203177111013925515. Gah! Here’s how to pretty it up.
Some Twitter users out there enjoy using Twitter’s website instead of a mobile app to compose their thoughts in 140 words or less. Now these brave web-oriented folk can shorten links using Twitter’s own shortening service.
Unless you use Google Toolbar or FeedBurner, Goo.gl won’t be of much use to you for now.