For instance, I met some new friends who have a great piece of software, but no marketing or sales experience. I immediately sifted through recent contacts and found a few people (both people I met at Lifehack.org) to ask whether their expertise matched these people’s needs. In essence, I reached out to my small network of “go to guys” for help. But as the list of contacts I make is growing, I find myself wanting to keep a simple, flexible database. Something that captures the contact information, maybe tags their skills, and keeps the communications log I mentioned yesterday. How are YOU managing your list? How do you keep it clear in your head who might be helpful to different problems and opportunities that arise? Share your personal methods with the other Lifehack.org readers.