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 ...

Hypothesis is a free, open access platform that stands out from many other annotation tools with broader functionality. In particular, it offers students the opportunity to work collectively to share ...

Eboni Thompson’s Instagram isn’t just an ode to the classic literature that she loves. It’s also a celebration of annotation: Warmly lit video reels linger on the colorful tabs that fringe the edges ...