Panda Security is offering free license keys for Cloud Antivirus Pro 1.3 to users who register. You'll be required to enter your name and e-mail address to receive the license key, which is good for one year. Also note that during the registration process, the checkout cart will state at some point, "Your card hasn't been charged yet." This is apparently a cart template and does not affect users who are taking part in the license key giveaway.

Source: Web filter joins Panda's Cloud Antivirus | The Download Blog -

Thanks Ankur.