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.
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 aptly named Awesome Screenshot is a convenient tool for capturing and annotating screenshots in Chrome.
One of Bill Gates' all-time favorite programmers is back after pondering the hypothetical: What would people do if the phone had never been invented before the Internet came along?
While our smartphones and tablets come with apps that let you jot things down, there are much better apps available that help you organize your notes and be more productive.