While we constantly crawl and check websites for new content and evaluate them for categories, there are some updates which we hold back and batch together for release at the same time. Now is one of those times!
We have database updates that will be made available via the web site URL category API and also for the downloadable database list over the next week. The first group of these updates contain over 5 million entries for sites and their categories and the second update contains another 2 million updates.
There isn’t anything you need to do to start taking advantage of these. They are made available immediately via the category API and are sent out in the incremental updates for the downloadable database.