This is timethief but I'm logged in under the username I have for my personal blog.
Does anybody know of any other websites that had layouts similar to the old topics page?
There are many other free blog hosts. You can use Google search to locate them. I have checked them all out quite thoroughly and I do have blogs on other free blog hosts. However, IMO none of them are equivalent to what we have here at WordPress.com, which is why my blogs are still hosted here.
If you log out of WordPress.com then you can access the Topics (global tags) pages. Example: Log out and try putting this in your upper browser bar and then clicking http://wordpress.com/tags/history/ You can simply change "history" to any other keyword. In the case of a keyword phrase you separate the keywords words with dashes. Example: http://wordpress.com/tags/history-books/