2. Jsonpatch JsA JavaScript implementation of the JSON Media Type for partial modifications: http://tools.ietf.org/html/rfc6902
3. Django Tracking2django-tracking2 tracks the length of time visitors and registered users spend on your site. Although this will work for websites, this is more applicable to web _applications_ with registered users. This does not replace (nor intend) to replace client-side analytics which is great for understanding aggregate flow of page views.
4. SynapseHooks to support data binding between virtually any object.
7. GraphlibGraph API and serializer for the JSON Graph Spec
8. cypherNeo4j Cypher compiler for building domain-specific APIs