Hi there - just wanted to warn you, my NoScript got triggered on your tumblr page about a suspicious re-direct. The redirect looked similar to tumblr's, but had an 'x' in it. You may want to check your tumblr theme's code to make sure nothing strange got in there. Oh, and just in case you want to test it yourself: NoScript is an addon for Firefox that blocks suspicious scripts from executing. Please have a good night!
I'm not totally sure what the txmblr.com domain is for, but it appears to be legitimate. A Whois lookup shows that it's owned by Automattic (Tumblr's parent company), and it's been in use since 2009. Dunno why NoScript would freak out about it now. Maybe something changed and staff ought to take a look at it? Might be worth opening a support ticket. At the very least, they might be able to say what it does.
But I've seen that domain listed as a traffic source on my YouTube analytics before, so it's probably just something to do with the YouTube video currently on the first page of my blog. And looking at the message that NoScript give, that seems to be it exactly.
So, ultimately just a false alarm, but thanks for letting me know anyway! I'd hate for there to actually be something malicious on my blog.