It can be really hard to keep up with the changes in the databases. We have joined all the support mailing lists (which we can discuss some other time), and they vary a lot in frequency and level of detail on changes at the different sites.
We are going to try to collect RSS feeds from useful sites that we want to monitor. We haven’t decided on a final look for them yet, but if you find an RSS feed for a site that would be useful, please let us know in the comments and we’ll add it to our collection.
PS: if you are a database or software provider and you don’t have an RSS feed for your news yet, please consider it. We’d like to have it.