Conservative author and blogger Andrew Sullivan announced over the weekend that he is leaving TheAtlantic.com, where he writes his “Daily Dish” blog, to join the Tina Brown-helmed Daily Beast / Newsweek merger.

Andrew Sullivan celebrated ten years of blogging this weekend — and last night he appeared on Charlie Rose to discuss what he has learned (or not, as the case may be) over the past decade.

News of violent protests in Tehran, Iran have reignited the Twitter movement #iranelection, which many point to as a defining moment for the 140-character service during highly contested elections last summer. The New York Times is reporting that police opened fire on a crowd, killing at least four, on the anniversary of the death of “Shiite Islam’s holiest martyr.” Andrew Sullivan’s Daily Dish blog also has up-to-the-minute coverage.

Comparing his blog to The Economist and the old Talk of the Town at the New Yorker, Andrew Sullivan ended his December vacation to respond to criticism that erupted over blog posts by Patrick Appel suggesting that other people wrote posts that ended up on Sullivan’s Daily Dish at The Atlantic‘s website.

Readers of Andrew Sullivan‘s Daily Dish know that, among other things, he and his team throw new material up at a blistering rate. Today, he’s briefly shutting the blog down for only the second time in ten years to do something most bloggers wouldn’t deign to do: read Sarah Palin‘s Going Rogue in its entirety.