A couple excerpts from a Hiawatha Bray review
It’s worth the wait. Clearly, some brainy Googlers have gone to school on the two best-loved social sites, Facebook and Twitter, and come up with some shrewd, attractive upgrades. But Google+ can’t supplant Facebook; I’ve got too many friends there. So it’s two online hangouts for me, instead of just one.
Forget Twitter’s notorious 140-character limit on message length. Google+ lets your posts go long. You can include videos, photos, or audio files, just as you would in a Facebook posting.
President Obama, currently the third-most-followed person on Twitter, could use Google+ to blast out full-featured campaign ads to his supporters, rather than just sending them links to YouTube. I have never been a huge Twitter fan, so once Google+ attracts enough users, I may never tweet again.