How to provide a legally sound license, or "terms of use", for a web application [closed]

Question

I am looking for information about providing a license, or "terms of use", for a web application. The Wikipedia article is very limited, and it seems that unlike "downloadable" software (or perhaps "installable" software, for lack of a better term), for which there is much more information, not so much has been written specifically for the licensing of web applications.

Would you say that hiring a lawyer to construct a legally sound "terms of use", or disclaimer, for your web application is absolutely necessary?

Someone asked: Which jurisdiction? My response here is: World-wide. I guess this opens up another topic, i.e. what jurisdictional limits you should take into consideration.

Answer 1

Hire a lawyer. Undesirable (and costly) as it seems, it can cost you a helluva lot more to get your TOS wrong.

Answer 2

Here are some UK-centric ones