All PSO related webmasters and website owners please note: According to news from
Sonic Team's PSO Xbox Page, the user agreement rules for XBox PSO concerning to use of Image Snapshots from the game has been updated.
It appears all screenshots and images need to be shown as copyright of Sonic Team to be able to be used and posted. All Xbox PSO screenshots need to have "(C) SONICTEAM / SEGA, 2000, 2003" shown along with the screenshot. You can only publish screenshots on websites without the inscibed copyright information if you have written permission from Sonic Team.
Sonic Team also says that this rule may soon apply to all other versions of PSO.
Screenshots may not be changed or altered other than for the purposes for an idea contest or for wallpapers. This includes running filters or painting on it in image editing softwares. You are however, allowed to trim it. You can enlarge or reduce the screenshot as long as it stay in a rectangular format. In the case where a user would like to use official images and screenshots for purposes other than stated above, the user would have to contact Sonic Team with the user's name, email, website address and title. Please note that this applies to all official Sonic Team PSO illustrations and images including the ones you find on Sonic Team websites.
All fan related works, including fan art and fan fiction are allowed if it's for non profit purposes. This would mean that PSOW will not be able to sell PSOW related goods such a t-shirts and stickers as planned in the future. Sorry guys!
More details can be found in the user agreement webpage
here. Please read Q2 and more importantly, Q5 in the webpage.
Update: DC version copyright message: (C) SEGA / SONICTEAM, 2000.
Ver.2 DC version copyright message: (C) SEGA / SONICTEAM, 2000, 2001.
Windows version copyright message: (C) SONICTEAM / SEGA, 2000, 2001.
GC Episode 1 & 2 version copyright message: (C) SONICTEAM / SEGA, 2000, 2002.
XBox Episode 1 & 2 version copyright message: (C) SONICTEAM / SEGA, 2000, 2003.
Use of the official PSO Font is allowed.