Scoop.it is a freemium service that allows you to create collections of resources, sites, images, etc. that you find appealing or interesting. Scoop.it has also has a wide range of sharing capabilities to let people know about you page.
As of March 2014, a free Scoop.it account only allows you to create 5 topics. If one wants to create more than 5 topics Educator accounts for a fee are available.