For new customers, Blockbuster Online again offers one month of its Total Access Online DVD Rental Service for free. (It starts at $9.99 per month thereafter.) That's one of the best such offers we've seen for this service. This is the "1-at-a-time" plan, which lets you rent one DVD title at once, with up to two in-store movie exchanges per month. (The more popular 3-at-a-time plan costs $19.99/month.)