Those aren't features built into JFBConnect and are more difficult now. With the
Facebook Graph API v2.0 release
in late April, they changed how getting information about a user's friends works. Now, the following happens:
* A separate permission must be requested of the user to see their friends. Before, this was one of the core permissions that had to be granted.
* The friends list that is returned is *only* the friends who have also approved the same app. Before, all friends of a user were returned.
Because of this, there are quite a few limits on what can be done with a user's friend list, if they give permission to see their friends at all.
Tripadvisor and Goodread are using apps created before April 30th, 2014, which means they can continue to use the older functionality until at least April 30th, 2015. At that time, they will likely have to move to the new, more limited system as well. Of course, they may have special privileges as well.
We had plans before the update in April to add more features for a friends user. Now, we're in investigation and observation mode to determine what is possible and what isn't anymore.
I hope that helps explain. The benefit of using a product like JFBConnect is that we're always keeping up with changes in Facebook and the other social networks so that you don't have to and so that you stay on the right side of their platform policies.
Thanks,
Alex