If your Global Newsfeed is empty, it’s likely that you have your “My Type” filter turned on with tight parameters. It’s also possible that the whole world is coming to an end—though that seems less likely. To solve this problem, either turn off your My Type filter or make the parameters more broad.
If your My Newsfeed is empty, that just means you aren’t following anyone. So stop being so shy and start following people. What are you waiting for? The whole world could end tomorrow.
Hope this helps clarify,
The Grokio Support Team