The BPS Journals office have just launched a twitter feed. Although I'm usually a skeptic about such things I've just tried it out and it is rather good. Having never used twitter before I didn't realize how the cross-linking works. You can subscribe to the feed, but also follow topic and other links (or presumably come across links in google searches).
The Journals office will also be providing some open access links to articles with lots of press coverage via these links.