An article in the ACC Docket, Sept. 2010 at 22, mentions that the small legal department of Bangor Hydro Electric used a web-based survey last year to gather client satisfaction data (See my post of March 26, 2007: Snap and Survey Monkey as choices.). Large companies may have their own software that can handle such a survey but others have to make do.
Small legal teams can resort to inexpensive survey options. As to that choice, clients may feel more comfortable, in fact, if their candid replies go not to a corporate server that can track them but to a third-party host that will not.