If you missed last night's pre-party ball for BlogHer 2008, you may want to linger in and around the Westin Hotel this weekend. BlogHer's Welcome Cocktail Reception is tonight at Ruby Skye and the closing reception is tomorrow at Macy's. Badges are required, but the parties officially end at 9 and 9:30 p.m. respectively. Friday and Saturday, the Great Mall in Milipitas is hosting the future of sports tour. See how science and technology are changing how we train, play and watch sports at this interactive event. You don't even have to go inside—it's in the parking lot. For the musically inclined, Saturday is a good day to ditch the iPod and head to Download 2008 at the Shoreline Amphitheater. Can't commit to a full day of music? The after party at Mezzanine features Datarock, whose ode to genius Venus Judy, "Computer Camp Love," leaves you with the giddy afterglow of a first date at the Tactile Dome.

Got something to add to the calendar? Send it to calendar@valleywag.com.