There’s a new book out called Twitter Wit featuring “the Funniest Tweets of All Time.” When Nick Douglas asked us about his ambitious plan to curate this collection it sounded good provided the right permissions were in place—and only if it was funny! After reading a draft, we bought copies for everyone at Twitter HQ.

Some of Twitter’s best features are emergent—people inventing simple but creative ways to share, discover, and communicate. One such convention is retweeting. When you want to call more attention to a particular tweet, you copy/paste it as your own, reference the original author with an @mention, and finally, indicate that it’s a retweet. The process works although it’s a bit cumbersome and not everyone knows about it.

As noted earlier on our Status Blog, Twitter is back in action. The continuing denial of service attack is being mitigated although there is still degraded service for some folks while we recover completely.

Over the last few hours, Twitter has been working closely with other companies and services affected by what appears to be a single, massively coordinated attack. As to the motivation behind this event, we prefer not to speculate.