WEB FOCUSED: Michael Caruso, whose contributing editor-at-large contract at Portfolio ended last week, is now devoting himself to being chief executive of the Daily Tube, the Web video aggregator he launched two months ago out of pocket. The site now has more than 10,000 subscribers, Caruso said, who have signed up for free e-mail newsletters cluing them into the video zeitgeist. So how is Daily Tube different from YouTube? Caruso has about 25 editors — mostly junior staffers at publications he declined to name lest their bosses balk — curating the videos and sorting them into channels like humor, sports and music. And they're drawing on video content beyond YouTube, including efforts by major media conglomerates on their own Web sites. "YouTube's great if you've got tons of time to wade through the crap and get to the good stuff," Caruso said. "This is for if you've got a job or a family or any kind of life and you still want to be in the swim." The Daily Tube will start selling ads through a third-party online ad sales vendor within the next month.