For all the human traffic that the Web attracts, most sites remain fairly solitary destinations. People shop by themselves, retrieve information alone and post messages that they hope others will eventually notice. But some sites are looking for ways to enable visitors not only to interact but even to collaborate to change the sites themselves.
On Monday in London, Stanley Wells, the chairman of the Shakespeare Birthplace Trust, unveiled what he claims is the only picture of William Shakespeare painted during the playwright’s lifetime.