Where can I see a list of my shared folders?

Here are some work arounds.  

(1)
(This description applies to the Mac, I'm hoping a PC user will add the how to for the PC)

1. If you haven't already, install dropbox on your Mac.
2. In your file manager (In the Mac it's called "Finder"), navigate to your dropbox folder.
3. Click the appropriate column sort button at top.  In the Mac,  the column header is labeled "kind".  Your folders are now grouped together and you can spot the shared folder icons because they have three little people on them.

(2)

This solution is for online browsing.  It's not ideal but it should work.

1. In your browser (such as chrome or internet explorer), navigate to and login in to your dropbox
2. Manually search your folders by scrolling down the page, looking for the two person icon that shows for the shared folders (patience may be required).
3. When you find a shared folder click the three dots in a line to call up the dropdwon menu and select "Rename". 
4. Add an extra word anywhere in the folder's name, for example your folder: "myphotos" might become: "myphotos shared-folder".  
5. Now use the search function at top of the page:  search for "shared-folder", and all the folders that you put that term into, will be found.

Caution:  since the folder name is changed you may need to resend the share invitation out to your friends again.  Ideally you will always rename a folder before your share it and rename it again after you unshare it.  

BTW...

before I wrote my reply the discussion thread had been labeled solved.  But the solutiuon: "It no longer exists." is NOT a solution, in my opinion.