Add to send list

Issue Summary

Id quite like to see a shopping cart type method for sending multiple nodes, "Add to send list" where the user browsers around the site, clicking the send link on a bunch of nodes and then when they've finished they can send all the nodes and choose titles or teasers to a list of email addresses.

Maybe this could be done so that when a user clicks the send link they get the choice to send now or add to send list (send later).

I think this is a really cool idea and have had a lot of requests from users for this functionality, i'm not sure but i think it would probably be easier to implement than it sounds.

Thanks