A Google Earth application developed by Analytic Graphics Inc. showed real-time (updated every 30 seconds) positions of 13,000 satellites around the Earth. Unfortunately, the company chose to stop supporting their Google Earth application in early 2015. AGI have their own 3D world browsing tool called Cesium and have developed a new application for viewing the real-time satellites which you can try here. The satellite positions come from a government-sponsored database which shows all satellites. You get the idea that our near-earth space is getting kind of cluttered don’t you? Read about space debris. Read more about this collection in the GEB post.
You can see what the Google Earth version of this application looked like in this YouTube video: