Twitter's Lists beta is coming out of beta, as the social-networking site has begun its rollout, with project manager Nick Kallen reporting that "25% of all users have Lists," and later tweeting, "We're releasing lists to even more people. Don't get your panties in a bunch, Twitter," TechCrunch reported.

Twitter developers told TechCrunch the full rollout is under way and expected to be completed Thursday or Friday.