Show HN: Migrating from Posterous to Tumblr and keeping your old post urls alive

I recently migrated from Posterous to Tumblr, and one of the things that bothered me was that, while I own the domain name (andrewoneverything.com) and could simply transfer it from Posterous to Tumblr, individual posts get different urls, which breaks old links and also messes up your Google page rank.

Fortunately, I found out that you can sort of create "301" redirections on Tumbler, that preserve links to your original post urls, and also inform the search engines of the new urls.

Just go to your blog, click on customize, click on "Add a page". In the window that opens, in the top drop-down, change "Standard Layout" to "Redirect", and then simply fill out your old post url in the "Page URL" text input, and fill out the new post url in the "Redirect to" text input, and finally click "Create Page".

Obviously, this gets a bit tedious if you have a large number of posts you want to redirect. In that case, maybe you just redirect your most popular posts.

Hopefully this helps a few people.