Superious, Bookmarks and Delicious
One feature I really like a lot are the bookmarks inside of Superious. You can manually bookmark posts, but you can also let Superious "auto bookmark" posts you comment on or liked (both settings are available in the bookmarks options).
If you found an interesting post and you commented on or liked it, the post will be out of your view soon, so you may not see reactions on the post. Not when you are using the Superious bookmarks! The background synchronization service will check your bookmarks for changes, too, and will notify you if something new was detected.
If you tell Superious your delicious account (again: in the bookmark options) you can even have them outside of Superious: Any post being bookmarked (no matter if liked, commented or manually bookmarked) will be put on your delicious account conserving the tags found.
If you filter your delicious bookmarks with the tag "superious" you'll see a list like that:
This screen is an example from my delicious bookmarks. You'll notice, that all bookmarks added by Superious do have the posts tags, the tag "superious" and the hostname of the Space, so you can filter all links by Space, too.
You can even order Superious to auto remove delicious links, when you remove a post from your bookmarks (you guessed it already: in the bookmark options).
So Superious bookmarks hold "important" posts. Posts you reacted on or manually marked as important. All of them are synched to delicious, if you like, so you can handle them later on your desktop computer.
Delicious is also some kind of backup for Superious. If you lost all your bookmarks you can fill your Superious bookmark list again with all links found on your delicious account having post.ly links. If I have to reinstall Superious, I am able to restore my bookmarks in this way i.e.

