Mail Merge can obviously save you plenty of time as you can send personalized email messages to multiple people at once. The feature is neither available in Gmail nor Google Apps but there are workarounds like:
Option #1. You can connect your Gmail account with Outlook and then use the Mail Merge feature of Microsoft Office Word to send bulk email messages through Gmail but from your desktop.
Option #2. You can use web based services like MailChimp, Constant Contact, Campaign Monitor, etc. for sending personalized mass emails but they aren’t free.
If none of the above options work for you, here’s a third and better solution – you can setup Mail Merge in Gmail through your Google Docs account – it’s both free and easy to setup. Let’s get started.