Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Conga Contracts - Conga Contracts is management solution designed to accelerate and simplify contract negotiations in Salesforce.
Nifty - Manage projects, work, and communications in one place.
PandaDoc - Boost your revenue with PandaDoc. A document automation tool that delivers higher close rates and shorter sales cycles. We've helped over 30,000+ companies.
CAMPR - Open source project management tool with 16 modules
ContractWorks - ContractWorks provides secure and easy-to-use contract management software that helps you gain control of your contracts.