Step 1: Assuming that your already have a Gmail account, go to your Google Contacts and create a new Group (let's say "Media"). Add all the contacts to this group who you want to send a personalized email.
Step 2: Create a copy of this spreadsheet into your own Google Docs account.
Step 3: You'll see a new "Mail Merge" menu in Google Docs near "Help." Click "Import Gmail Contacts" and authorize Google Docs to access your Google Contacts.
Step 4: Click Mail Merge -> Import Gmail Contacts again and type the name of the Gmail group ("Media") that you created in Step 1. Google Docs will now automatically import the relevant Gmail contacts into the spreadsheet.
FormEmailer is a Google Apps Script for Google Forms and Spreadsheets.
With it you're able to easily set up flexible e-mail merge in your spreadsheets and automatic emailing to your forms.
The best part is that you need NO javascript knowledge, and everything is set up in a simple interface.