And, unusually for an internet business of the era, it was profitable.
But just two years later the wheels had well and truly fallen off the bandwagon.
Last year Jennifer Aniston told the Huffington Post that the show simply wouldn't work in the modern world.
She said: "We were jokingly saying that if Friends was created today, you would have a coffee shop full of people that were just staring into i Phones.
Fans went wild for the trailer, with many people unaware that it was a spoof.
One tweeted: "If this new FRIENDS movie is real & they’re tryna tell me Chandler & Monica broke up & Ross & Rachel broke up & Phoebe is a doctor I ain’t watching it." Another said: "Finding out that they made a ' Friends' movie and then finding out it was a hoax within the course of 3 minutes was not the way I wanted to wake up today, I'm going to be emotionally unavailable for a week now." Finding out that they made a ' Friends' movie and then finding out it was a hoax within the course of 3 minutes was not the way I wanted to wake up today, I'm going to be emotionally unavailable for a week now— Alex Davis (@alexxdavis65) January 20, 2018 Sadly a real movie is unlikely - and not only as the stars and creators are busy with other projects.
It lets users plot out key moments in their lives and share them with those who were there at the time – rather than thousands of Facebook friends.
Rival social network Path offers a similar proposition by letting users control the audience for each status, or photo they post.
And if you preferred SATC to Friends, find out what stars Kim Cattrall has suggested replace her in the new Sex and the City movie.
Friends Reunited allowed its users to get in touch with old acquaintances by searching for people who shared a school, university or workplace.
Equally dopey Joey Tribbiani - played by Matt Le Blanc, 50 - is now a successful actor, and can be seen bumping in to old pass Ross Gellar at a glamorous party where he is wearing traditional Indian clothing.