Hi,
Glad to see the title search getting some use! Like the FAQ says, it's a bare-bones implementation meant to gauge interest and see what features people actually want. Thanks for looking up the FAQ, Eric.
Aaron, we just added pagination and updated the FAQ and API docs. Add a page argument to get results after the first 50. The pagination is stateless; there's no session token to hold on to. It's easier to use, but in the unlikely event that new matching articles are added while you're paging, it's possible to skip or repeat results.