Evernote is a great tool for saving material you find on the web for later. (For keeping tabs on websites, use Delicious for bookmarking them, or find their RSS feed.)
Evernote lets you save whole pages, or just parts of them, or any other text or images you want, in one place. You can then access that material from anywhere with an Internet connection, including your mobile phone. Using its software, you can also save it for offline use.
To get started, visit Evernote’s sign-up page and set up an account. (The basic one is free; a premium account gives you more online space.)
Evernote lets you divide your material into notebooks. Think of these as folders. You can view the contents of each notebook or all of them. It also lets you assign tags to your content to make it easier to find later. These are like the tags in Delicious but they’re not connected.
The notebooks on this page are circled in red, the tags in blue, the actual notes themselves in green:
The easiest way to save material to Evernote is via an add-on. Once you’re set up your account install the add-on via the downloads page. (More instructions here.)