Google has been rolling out the treats lately on its Gmail service. First they officially launched the Web Clips feature and Virus Scanning. Now, they have introduced two things that have been heavily requested: Contact Groups and Vacation Responses.

Vacation Responses: You can set up a vacation response in your Gmail account that will automatically reply to anyone who emails you. While the vacation responder is enabled, Gmail will send a response to anyone who contacts you.* If that person contacts you again after four days and your vacation responder is still enabled, Gmail will send another vacation response to remind the person that you’re away from your email.

Contact Groups: Gmail lets you organize your contacts into Groups so you can easily send messages to a number of people at once.