Quickwake, from Wakelet is the quickest, nicest way I've found of bundling up links and sharing them in one go. Others have tried it (remember Bitly Bundles?) but this is nicely done and also a good, lightweight introduction to their full product.
AmazingLinks helps you to create Amazon affiliate links that work for every country by providing you a smart link that redirects your users to the correct Amazon store.
In addition to that AmazingLinks provides in depth link and redirect analytics
Capsulelink is a simple web application that lets you add multiple links and send or save them as one.
Also, there are private links for registered users.
Private links are only visible to the user who created them.
Links created by anonymous users (users who are not logged in) expire after 48h, while the links of registered users don't expire.