Joyce Valenza's comprehensive information literacy, web tools and research tools Libguide containing tools, tutorials and other resources to help students navigate the research process.
Instapaper is a very useful service where you can save articles from the web. It will remove advertisements and other distractions, giving you a nice clean version of the article. You can also install an app on your mobile so you can read articles on the move, even when you don't have an internet connection.