I think you didn't know Second Life...

When it debuted in 2003, Second Life was an irresistible subject for Geeks and technophile reporters. It was the subject of endless, high-profile reports. Numerous companies attempted to capitalize on the attention by launching an official presence in SL.  Early adopters made millions too. The Linden Dollar, could soon influence whole industries and governments. Media coverage touted Second Life as the future of the Internet.

Yes, there are many similarities with bitcoin.