The startup, RapGenius, has developed a way to annotate with additional information everything from rap lyrics to poetry to news.
High technology aside, the two great things about old-fashioned books are that they are cheap, and you can take notes in them. Can Apple's tablet offer both?
Annotation service now has a professional version for users who want to mark up PDFs along with normal Web pages.
Add links and annotations to your videos and make them hypervideos with Asterpix.
Share things with people. They'll like you for it. Even better, find other people to share things with, and see what they're looking at. Not sure what to use to do all this? Check out Yoono's new Buzz It feature.
Add annotations to videos now with YouTube.
This universal iOS app lets you draw arrows and rectangles to mark up screenshots on your iPhone or iPad.
The rules of the road for iTunes are being savaged over at the online platform intended for explaining rap lyrics.
The iOS app can support up to 100 authors working in real-time on the same document and up to 1,000 simultaneous viewers.
If you regularly use your desktop to organize files, then you might benefit from creating a custom image to manage your workflow.