Diigo !
There are different social bookmarking tool and "Digest of Internet Information, Groups and Other stuff"(Diigo) is one of them. Diigo allows us to save links that we like and that we think it may be useful for us in the future. We can sign up for free using our personal email itself and we will receive an email to activate our Diigo account so that we may start using. We can also arrange the links in different groups according to its features. For example, if we have an assignment on different parts of the body, we can grouped the links of each part of the body that we searched and put them under the same title when we save them. Highlighting and attaching sticky notes option are also available, just like a book! Moreover, we can gain access to the Diigo library from any laptop we want, provided there is an internet connection. Thus, Diigo can help us in saving educational or interesting links or pdfs to later share them with our students and colleagues or keep it to ourselves. Diigo allows students and even teachers to develop professionalism in them as they will create a learning platform for themselves and others. It also saves time as we will not have to search again for a topic we already went through. We can use it for our projects and also feedbacks on researches. Likewise, there are other social bookmarking such as Reddit, TweetMeme,YahooBuzz,etc... Those Social Bookmarking make it easily accessible for users, especially bloggers , to save and create the best content according to their preferences.
Incase you find interesting links or notes you want to save for later, then, diigo is the best fit for you !