Watch ads on your mobile, get free minutes

If you’re desperate to get free mobile minutes and you can pay attention for 30 seconds at a time, then SugarMama is for you.

Despite the odd-sounding name, this service can give you what you’ve been craving. You can earn up to 75 minutes of free talk time a month, and you can achieve it by doing nothing more than watching commercials on your PC or by getting text commercials on your mobile phone. Each time you do it, you get a free minute.

Oh, wait, there’s one other thing: You have to take a little test afterward, to prove that you absorbed what the advertiser wanted you to. We’re not sure what happens if you flunk out, but we would guess that you can take the make-up.

Another option is filling out a questionnaire about, presumably, a future ad campaign. Thankfully, you don’t have to do that and take a test as well.

It’s all the brainchild of Virgin Mobile, a rather small carrier that boasts mainly younger customers, and it goes live on June 14. As of now, the rotating ads will be from Pepsi; Xbox; and Truth, a youth antismoking campaign.