Free internet access across Argentina (for the price of a local call if you live in the coverage area of this service, otherwise you'll have to pay long-distance phone charges). You'll also get a free web-based email account.
Free internet access in many major cities across Argentina. All you pay is the telephone charges - Tutopia supplies software that can help you track exactly how long you're connected and how much the call will cost you. POP3 and web-based email are also included.