It has always been a free service, getting by on sponsorship and donations. Currently there is a donation drive going on, and it does have an added bonus. If you donate 30 pounds or more, Mark Crowther, (the man behind TWIC), will send you a copy of the entire TWIC database. The is contains around 1.9 million games from the last 22 years, and it is worth getting if you need to keep your reference databases up to date. Having made a recent donation I was delighted to get my hands on this file, which even included some of my efforts from various chess olympiads, including the following game, which was the first one I ever played at this level.
Press,Shaun - Bagheri,A (2409) [B16]
34th Olympiad Istanbul TUR (1), 28.10.2000