Sum It Up is an extension for Google Chrome that allows you to create micro-bookmarks on Web pages. With this extension, you can mark not just web pages but specific parts of their content and jump quickly to them, or send the sections you've highlighted to yourself or others by email. You can even tag and search the content you've highlighted. If you want to separate different topics, Sum It Up lets you use different colours of highlighter. If you're using web pages for research and need to move between them quickly, Sum It Up is a great time-saving tool.