There is a lovely multidimensionality in starting up a new character for a collaborative writing/role play project at Pan Historia that feeds all my creative urges at once, nearly. There are two main roads into a new character: getting an idea for a character and then finding a place for them to dwell; or finding a story you really like and then finding a character to fit in. Creating a new character from scratch is the most creatively demanding because of the added dimensions of home page design. I love kitting out a new page for a new character from finding the right graphics, or creating them from scratch if one has a bit of tech savvy with a graphics program, and then designing a fun informative home page from all the different components.
Home pages are useful. I think of them as character biographies where you can get your decorating urges taken care of and impart something useful about your character in turn. My Wyatt Earp home is both western in theme and includes useful historical quotes about Wyatt from people that actually knew him. My Gabriel Oak home is less about the personality of the character but is very informative about some of my inspiration for the character. Gabriel is an interesting character inspired both from literature and from the movies. Those familiar with Thomas Hardy will recognize the source of the character's name, and of course the face I use is from the movie version of the novel "Far From the Maddening Crowd". I'm not a fanboy however and Gabe is his own character. In one earlier incarnation he was an artist with a supernatural angelic side living inside him. When he moved on to a different story he became a drunk, the human mask, of the Archangel Gabriel.
Of course some characters live in many different role play and collaborative stories and one home page can hardly do justice to all their diverse lives. That's why the profile pages were originally added as a 'room' off the main home page. These pages include sections for each novel that a character appears in so that the owner can give a little biographical detail. The beauty of a site like Pan, though, is that with so many interactive features the creativity of the individual takes over and tools are always adapted to the needs of their owners. I don't try and force people to use Pan the way I anticipated. Instead I'm often adapting Pan to fit in with the needs of the users.
A lot of people reserve their character biographies for the forums of the novels themselves and use the home pages as a place to show off all their awards, prizes, badges, and the little graphical gifts that people make for one another. This is probably a similar approach that many users of MySpace employ, but it's fun nonetheless. Of course it doesn't really help me, as a writer, when I click on their home to see more about their character, but usually I can at least some kind of sense from the avatar they have chosen to represent their character. Other people actually write out character sheets. I have never employed one of those. I like to get a general impression, and then let inspiration take its course when I'm writing. If I get too locked down on who I think a character is I find that the work become stifled and creativity shuts down.
I guess I can sum up what I'm trying to say is that using the internet and a web site like Pan Historia allows me and my fellow writers to add layers and dimensions to our writing experience, like creating images and home pages to enhance the experience. The way that any particular writer or role player chooses to implement these tools is often going to be as unique and different as the perspectives we bring to our writing and characters.