RSS (Real Simple Syndication) is a way by which Triberr imports your new posts and presents them to your tribemates for sharing. So, it's very important that your RSS is configured correctly.
You can find your RSS feed's address in few different ways.
Look for the RSS Icon
Click on it and copy/paste the URL from the address bar into Triberr's Settings.
Discovering the URL for your RSS feed on Wordpress is usually pretty easy.
It's either http://your_domain_name.com/feed or http://your_domain_name.com/rss
On BlogPost.com (aka Blogger), the naming convention is as follows.
Your RSS feed URL with Tumblr is actually pretty easy. Just add /rss at the end of your domain name.
For example: http://dogandogs.tumblr.com/rss
Your podcast may be embedded in your blog, in which case use your blog's RSS url.
If you're using LibSyn to host your podcast, the RSS URL usually takes the form of http://podcast_name.libsyn.com/rss where "podcast_name" is the name of your podcast.
Triberr is able to import your YouTube videos directly using your channel's RSS URL, which usually takes the form of:
http://gdata.youtube.com/feeds/api/users/insert_channel_name_here/uploads where "insert_channel_name_here" is the name of your channel.
Check out this very informative video about RSS feeds.