From the homepage:
CONNECT
Our Open Source backend indexes your graph so you can connect with it on Linkurious and get started in minutes. When it is done, launch the web application of Linkurious.
SEARCH
Typing any keyword in the search bar brings up all the related data in one step. We provide a console for advanced queries so you can be as broad or as specific as you want.
EXPLORE
By focusing on the items related to your search, visualizing and exploring your graph has never been easier. Dig further in any direction using the connected nodes and make sense of your data.
A couple of other resources:
How it works, and
Graph Visualization options and latest developments
will be of interest.
I haven’t signed up, yet, but the slides make a good point that what graph visualization you need depends, unsurprisingly, on your use case.
I first saw this in a tweet by David W. Allen.