Here at The Daily Spin, we can never get enough of YouTube, and this year had a great offering of memorable videos. Some were historically significant, while others were just hysterical. Some got swept up in the mainstream, while others remained for tennis fans only. If we weren't watching them, we were talking about them. Starting today, I'm counting down the clips that were the best of the year, IMHO. I'll spotlight one video a day. So, without further ado…

10. Does Oprah Tip Well? Ask Serena
Girls will be girls, and the sisterhood really came out in the Oprah Winfrey show segment featuring Serena Williams giving the show's host a pedicure. Williams, who has been taking classes all year to get her nail-technician license (you know, so she can become the WTA's first official nail doctor), chatted with Oprah about all things girly: school, money, love, Oprah. When Winfrey said, "I can't believe Serena Williams is actually filing my big toe," we all nodded our heads in agreement. It was a real touchy-feely-massagey moment. We still get lightheaded just thinking about the fumes from the nail polish.

—Sarah Thurmond