Gmail Labs are the experimental additions to Google’s web-based mail service. Some are muy useful, like being able to add emails to a “to do” list, others not so much, like changing the Gmail logo back to show that the service is still in beta, as it was for so long.

For awhile the additions were coming hot and heavy, lately we haven’t seen much new — until today.  Gmail added two new ones – “Got the Wrong Bob?” and “Don’t forget Bob” .

• Got the wrong Bob? – Gmail checks to make sure the “Bob” you’re including in your email is the right one based on who you email most often.  When I send to Mark, I mean my brother, not some guy I worked with in a former life.  Addressing email to the wrong person can, of course, be more embarrassing that my example.
• Don’t forget Bob – With “Don’t forget Bob,” you can start composing an email to a group of people, and Gmail will suggest other contacts you might want to include.

To enable either or both,  go to the labs icon in the upper right of your Gmail screen, click it, find the Bob’s and enable them.

Since it is Google, wouldn’t “Got the wrong Sergey” have been catchier?