Sharing my watchlist

Well, there is a Share button on the Desktop page, providing Facebook, Twitter, email and Copy options. You can Export anyone's Watchlist, which gives you a csv file to be used in a spreadsheet program. The Export link is at the bottom of the page. If you know the list id of someone's Watchlist, you can use this to compare it with any of your lists: Advanced Title Search for lists NOT your own Unfortunately, the only way I'm aware of to determine the list id of a Watchlist is for its owner to Edit their Watchlist. Then the list id shows in the url as described in the instructions linked above.