In a recent Exotic Liability podcast (not PG13) Chris and Ryan interview folks from Paterva, the makers of Maltego. You should definitely try Maltego if you’ve never used it. They have a free version and it runs on both Windows and Linux. The software allows you to create a visual mapping of gathered intel. The tool is a must have for penetration testing as well as gathering intel on persons of interest, a la dossier. Maltego includes a powerful feature called transforms which allow you to rapidly pivot from one piece of valuable information to another.
FYI: Chris and Ryan hosted TruTV’s Tiger Team show which had a shorter life then the Microsoft Kin.