My blog Continuations has been on Tumblr since I started writing it a bit over eight years ago. But now I am seriously considering moving away from Tumblr. There have always been limitations, such as difficulty embedding certain types of content, but I generally worked around those. I liked being part of a network and the positive attitude that Tumblr was promoting – one of the reasons they stayed away from comments, but did support Disqus for people like myself who wanted comments. Now, howe...