Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

In 1965, psychology professor Bruce Tuckman developed his theory of the stages of group development. He remarked about how a group dynamic, whether that group is a business organization, non-profit ...

Brainstorming unique business ideas or completing a large task requires the help of a team or group. When a project is launched, the usual procedure is to appoint a leader for the group and then ...