Find out your options for getting rid of YouTube's annotations and its new interactive cards.
The Annotate Attachments in Gmail extension lets you annotate attachments right in Gmail and creates cloud-based files for easier collaboration.
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.
Taking a page from the quick sketch and annotation tools you can find on some smartphones, Google is adding these abilities to its Hangouts app -- but just in the Web version for now.
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.
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.