Since organisation of ideas, stocks, and projects is a major concern (or at least should be) of labs and researchers, here is a small compilation of cost free sofware to help out:
Quartzy is a free web based application (supported by life sciences related companies) it focuses on sharing protocols, tracking orders, manage lab inventory and shared quipment management.
eLabFTW is a management system created by Nicolas Carpi. It is opensource (which means each lab can customize it for special needs), free and it can be installed locally. Its online demo version focuses on experiment log, database (where drugs, chemicals, animal strains and etc can be logged) and team (where lab members can be listed).
eXo platform is an open-source social-collaboration software designed for enterprises. It is full featured, based on standards, extensible and has an amazing design (description from their website). Also from their website, this is an intranet social network tool, that has the following features: