Sure, go to your Monitor window & the lower window partition will show who & what is uploading at that time. To find a summary of what's been uploaded & seen by other users, go to the Library window, click on your shared folders, & look to the columns to the right. Hits represents it's been found in a search. Uploads means just that. 2nd number meaning partial.

I like to arrange the window at those moments by either hits or uploads. ie: double-click on the uploads column heading & it will arrange the files with the most uploaded at the top of the list. Likewise for hits, etc. A single click will arrange smallest at top, double-click is always largest number at the top.