The Tenth History Carnival is up at "Spinning Clio"; and it looks great.
The next History Carnival will be here, at Siris, July 1st. Be sure to send your submissions and nominations to me at branem2[at]branemrys[dot]org (with @ for [at] and . for [dot], of course). You can find information about the posts we're looking for at the History Carnival website; we're very open about the sort of posts that can be involved, as long as the posts are genuinely history-related, involve some real analysis or discussion, and conform to reasonable standards in the use of evidence and argument.