Top news this week in social media and tech (and other fun stuff I care about):

• Apple Sells 3 Million iPad Minis During Debut Weekend - Apple said it sold 3 million units of its iPad mini and fourth-generation iPad during the debut weekend, a sign that the new devices can help the company withstand accelerating competition in the tablet market.
• Instagram Launches Web Profiles - Instagram announced this week the launch of web profiles, full-fledged Instagram profile pages you can access from a web browser--however they maintain a clear focus on mobile.
• New Twitter policy lets users see tweets pulled down for copyright - Twitter has changed the way it responds to DMCA copyright notices. Rather than removing tweets, it is “withdrawing” them instead. This helps show when and why tweets go missing, and also brings new transparency to the DMCA process.
• Facebook App Updates Includes Photo Filters - Facebook users with the updated iOS app can now add Instagram-style filters to pictures uploaded via their mobile device.