37signals has launched (quietly) their latest application called Highrise, an online contact manager. Interestingly enough, I found this news via a Twitter from Mashable which linked to a post detailing the release. I just signed up for a free Highrise plan to try the service out. I’ll post my first impressions after I give it a test drive. So far it looks similar to the other 37signals applications as far as user interface and intuitiveness. They bill Highrise as somewhere between your address book and a traditional CRM. Pricing ranges from free to $149 per month with the very reasonable 37signals upgrade/downgrade policies still in place.