CNet: BCCthis – Gmail Add-on For Customizing Group E-mails To Each Recipient
Now available for Gmail, this little utility comes in handy when you’re composing a message to the entire team, but want to add a private message to one or some of the recipients.
“Hey, Gmail users. If you’ve ever wished you could append a private note for a subset of recipients in a group e-mail without having to compose a second message, here’s an in-progress application for you.
Bccthis, which was first introduced for Microsoft Outlook and BlackBerry, is an e-mail add-on that hooks into Gmail by way of the Firefox browser and lets you create a secondary e-mail to select contacts without leaving the composition window.”