"Highrise: CRM With 37signals’ Simplicity" [PCTechTalk.com] offers a thorough look at Highrise and says, "If you’ve ever thought that you’d like a better solution for managing your customer info, definately give Highrise a try."
Beyond contacts, deals are Highrise’s second major focus. This is where you can add information about proposals for jobs your company is bidding for, and obviously works best for firms that do individual jobs for clients. Highrise lets you enter the bid value, add tasks related to the project. This is a great way to keep track of who’s involved with a project with Highrise’s great contact management. Even if you’ve won a bid, you can still use your deal page to keep track of the ongoing project. Whenever you receive emails about the project, you can forward them to your unique email addresses generated by Highrise for each project, and they’ll be automatically added as a note.