Here are three:
(Formerly Read It Later)
The uber-popular social network / social bookmarking / time sucking website is a great way for anyone who wants to organize their online travels. You can pin just about anything (as long as it has a big enough image on the page)using a bookmarklet. Pinterest is by far the easiest tool of all the ones mentioned by us. Best of all, it’s the best in terms of content discovery. Pinterest is a legitimate social network where you can waste, err, spend hours just browsing your favorite categories. You’ve been warned.Diigo
Diigo is very popular with the world of education. That’s because it offers a few critical tools not found in most other tools. You can ‘highlight’ certain web snippets for easy access at a later date. In other words, you can pick and choose certain parts of web pages and not have to simply bookmark the entire page. That’s great for detailed lesson plans, research, citations, etc.