I started my wedding planning with a 3 ring binder, this first binder was mainly just ideas, dresses, color themes, reviews of resorts.
I then had a second 3 ring binder that developed of my "acutal" wedding stuff, room block contracts, menus, guest lists, photog emails, contract, same for my other vendors.
I kinda stopped using the first one, and just started bookmarking things on line but it did help me feel more organized in the beginning.