When you visit the website of a beta Stack Exchange site you are not a member of, you are greeted with a nice description of the site. For example, on Operations Research Beta you see the following:
However, once you join the site, this description goes away:
On a beta site, to my knowledge, there is no way to find the description anywhere on the site as a member.
Can we create a way to continue viewing the description of a beta site even after joining?
On non beta sites, you can see the description at the top right:
So this appears to only be a Beta website feature.