Social bookmarking.

Social bookmarking is an Internet tool that lets us organise, use and share information more efficiently. It works like the Favourites option of a browser program. All the content is stored in the cloud. The cloud is a metaphor used to refer to services that are used over the Internet. Some of the most popular social bookmarking applications are:

• Delicious is a service that lets us save our favourite web pages along with a description and a list of key words for easier classification.We can share this information with other people and see the content that they have bookmarked. Is available for mobile devices.

• Diigo defines itself as a 'multi-tool for knowledge management' It lets us bookmark the pages that we visit and create a digital library in the cloud, with links, notes and images. We can access to the library from any place and select that we want to share. Is available for mobile devices.

• Evernote is a workspace where we collect the information by capturing articles and images from the Internet. We can add notes and share information. Is convenient for making presentations, and is for devices.