The people at news analytics tool Chartbeat have created a free tool to show what is popular and engaging around the web.
Called Chartbeat Rising, it tracks topics across the internet in real-time.
Chartbeat Rising looks at the number of active browser visits on a site at a given time. The site explains that the "concurrents" metric takes into account "how many people visit a site and how long they stick around".
It explains that "engaged time" is "the length of time people spend reading or writing on a site — the time they’re actually spending using it — which we gauge based on mouse and keyboard activity".
Content is anonymised and aggregated from thousands of sites.
There's further explanation on the Charbeat blog, which explains that the tool came out of a hack week.
The blog post also explains the "wiggly movements".
As Rising is all about the topics that are rising to the top, the movement shows how the bubbles are interacting with each other – the biggest bubbles with the highest ranks are wiggling their way around the other bubbles to rise to the top.
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