Members’ Benefits vs Member’s Benefits [duplicate]

Possible Duplicate:
Where should the apostrophe go in the word “beginners” in “beginners guide”?

I’m currently developing a site which has a membership scheme which you pay to sign up for. To encourage people to do this, there is a page that highlights the benefits of becoming a member.

They want this page to be called Member’s Benefits.

Should the apostrophe come before the s, or after?

Solution 1:

If the benfits apply to all members, then there there isn't much of a case against Members' Benefits. However, the apostrophe seems to be disappearing in cases like this and Members Benefits is defensible on the grounds that Members functions as an attributive adjective (as would Member in Member Benefits).