Single Topic Blogs: This Tumblr features photographs of women sporting the trendy undershave hair-style popularized by the electronic music producer Skrillex.

Single Topic Blogs: Even with thousands of Facebook friends, this blog reminds readers that the web can be a very lonely place.

While this anti-bullying campaign has become a success story in the uncharted territory of social media advocacy, recent cases of bullying in school seem to raise more questions about the degree of its impact.

Single Topic Blogs: Tumblr's favorite hypothetical sweater blog launched its online store shortly after a fallout between the site's co-creators earlier this month. At a hefty minimum bid of $100 per sweater, it's almost a dream come true.

These image macro puzzles present culturally obsolete items without labels in order to deduce the viewer's approximate age from his or her ability recognize the connection between the two objects.