Google got Blogger back online late this morning following a maintenance-related glitch that kept blogs dark for more than 20 hours.
"We're nearly back to normal -- you can publish again, and in the coming hours posts and comments that were temporarily removed should be restored," Eddie Kessler, tech lead/manager at Blogger, wrote in a post on the Blogger Buzz site around 10:30 a.m. PT.
The post continues:
Here's what happened: during scheduled maintenance work Wednesday night, we experienced some data corruption that impacted Blogger's behavior. Since then, bloggers and readers may have experienced a variety of anomalies including intermittent outages, disappearing posts, and arriving at unintended blogs or error pages. A small subset of Blogger users (we estimate 0.16%) may have encountered additional problems specific to their accounts. Yesterday we returned Blogger to a pre-maintenance state and placed the service in read-only mode while we worked on restoring all content: that's why you haven't been able to publish. We rolled back to a version of Blogger as of Wednesday May 11th, so your posts since then were temporarily removed. Those are the posts that we're in the progress of restoring.
The publishing site has millions of active blogs, he said.
Updated 10:59 a.m. PT to say Blogger is back up and provide more details.