It would be nice if the Description field wasn't just a single line (i.e. multi-line) when editing.  Trying to decipher what's written can be a pain sometimes.

Also, if you could hover the mouse over the resource/account and after a period of time (e.g. 1-2 seconds) a summary would pop-up; this summary could be very similar to the 'Resource Information' you get when you view the resource via 'Resource Details Report'.

Alternatively you could add the Information icon  as you have done so with user accounts.

This could also apply when viewing the list of groups too.  Speaking of which, you can hover over the description of groups and the full description will appear, but this only happens if the description is over a particular length.