With Send from Gmail, you can quickly email the link of the current web page to your friend with a click. It works for both Gmail and Google Apps for Gmail accounts.
Send from Gmail adds a button to the Chrome toolbar that will create a new Gmail message when clicked, using the page title as the subject and selected page text and link address as the message.
The extension, developed by Google, can also be used for setting Gmail as the default email client in your Chrome browser. Once it is the default, mailto links on any web page will always open a new compose window inside Gmail.