This Chrome extension can now be used for more than capturing screenshots of Web pages.
Flickr co-founder Caterina Fake has released a new augmented-reality location-discovery app that works like a crowd-sourced version of Google's Field Trip (now available in Australia).
This universal iOS app lets you draw arrows and rectangles to mark up screenshots on your iPhone or iPad.
Create, annotate, and send screenshots without having to clutter up your desktop.
YouTube has launched a raft of new tools for video creators to lure them away from Kickstarter, Indiegogo and Twitch.
Mahbod Moghadam has left the text annotation startup after making insensitive notes on the manifesto penned by the man who killed six people in Santa Barbara, Calif.
Sony's 13.3-inch pad uses a Kindle-style screen, lets you scribble on your documents, and will go on sale in May for $1,100.
The startup, RapGenius, has developed a way to annotate with additional information everything from rap lyrics to poetry to news.
The Skitch app offers a simple layout to add comments to photos, maps, or just simple drawings.
The Defense Advanced Research Projects Agency is crowdsourcing its software testing with a series of online games aimed at seeking out bugs and vulnerabilities.