Graph Visualisation Libs

- Canviz, Graphviz rendered on a HTML canvas with JavaScript Online demonstration

- Cytoscape Bioinformatics analysis and visualization tool

- Gephi

- iGraph

- JUNG visualization in Java, can be used with a mapping layer over Gremlin

- Ondex

- Prefuse in Java

- Ubigraph

- Thread on large scale visualization tools for RDF

- NodeXL Excel based visualization for graphs