Cision, the big PR database company launched what is essentially a Twitter search engine today called JournalistTweets. It's limited to just journalists, "thousands" according to the press release. It's a handy tool to filter out the cacophony of voices on a trending topic and keeps it to just four topic areas: business, technology, health, and entertainment.

Luckily for its own reputation, Cision is not pushing any tools that allow PR people to automate their participation in Twitter conversations. The Twitter Tips section includes the following recommendation:

Avoid syndication tools that push content to Twitter in robotic-looking ways. Remember, Twitter is about personal connections. If you want to tweet about your own projects, make sure to tweet about other things too that won't be considered self-promotional.

Related: Cision to Add Twitter Handles in Q2