Over 19,000 members attended "Flockers," as the festival was called.Important elements of the website are the news section, a calendar with party dates for over 23,500 artists, 4,525 locations and 2,200 organizations; a photo section with over 400,000 party pictures, and an interactive forum on which a variety of topics are discussed that are of interest to Partyflock’s members.
As of 2007 August, it has 2,6 million registered users with real names. Every user can provide personal information such as the place they live in, date of birth, schools and universities they attended, workplaces, interests and pets.
One can find friends by a search tool or looking through one's acquaintances' acquaintances.
On October 26, 2005 the system was rebuilt from scratch and got a new name (i Wi W).
In 2001 Partyflock was started by Thomas van Gulick, then a student at the Universiteit Twente.
The Universiteit Twente and Studenten Net Twente stimulated the growth of the site by allowing it to generate large amounts of web traffic as long as the site had no commercial goals.
After Thomas’s graduation, Partyflock left the campus grounds and became an independent website.
Until March 2005 Partyflock was run entirely by volunteers.
All computer hardware was paid for by member donations.
In February 2008 Partyflock counted 403,754 active members and on a monthly basis around one and a half million people visit the site.
The site generates around 500 million page views per month.
In February 2007 Partyflock hosted a large indoor dance festival in the Gelredome in Arnhem to celebrate its fifth anniversary.