TinkerPop is not a graph DB, it's a graph software stack / computing framework for graph DBs (OLTP) and graph analytic systems (OLAP).
Since TinkerPop is integrated with almost all of the graph DBs and graph processing engines, its mailing lists are good place to discuss and get help with graph-related projects. * http://tinkerpop.incubator.apache.org/ * TinkerPop / Gremlin Users Mailing List http://groups.google.com/group/gremlin-users * TinkerPop Developer Mailing List http://mail-archives.apache.org/mod_mbox/incubator-tinkerpop...
# See also
In computing, a graph database is a database that uses graph structures for semantic queries with nodes, edges and properties to represent and store data - wikipedia 
Cytoscape.js is an open-source graph theory (a.k.a. network) library written in JavaScript. You can use Cytoscape.js for graph analysis and visualisation - cytoscape.org