Yahoo! Meme will be discontinued on May 25, 2012...
From the article...
Unfortunately, the time has come to say goodbye to Meme.
As part of Yahoo!’s commitment to delivering Web content and tools that matter most to people, we are reprioritizing our portfolio so we can focus on our core strengths and new innovations.
Yahoo is unceremoniously dumping its Tumblr competitor so it can focus on suing the pants off Facebook?