gnizr™ (gə-nīzər) is an open source application for social bookmarking and web mashup. It is easy to use gnizr to create a personalized del.icio.us-like portal for a group of friends and colleagues to store, classify and share information, and to mash-it-up with information about location. It's free.

Image Matters LLC contributed gnizr to the Open Source community, and continues to support its development as part of its gnizr Enterprise software.

Feature Highlights

• Archive saved bookmarks and organize bookmarks using tags and folders.
• Edit notes using WYSIWYG bookmark editor.
• Assign geographical location values to bookmarks and view them on a map.
• Define relationships between bookmark tags -- broader, narrower and member-of.
• Tag bookmarks using Machine Tags.
• Super fast bookmark search using Lucene.
• Search bookmarks and other sites simultaneously using OpenSearch.
• View bookmarks in Clustermap and Timeline.
• Import new bookmarks from user-defined RSS subscriptions -- RSS, Atom and GeoRSS.
• Create new application behaviors using gnizr API. For example:
• Add modules to support custom Machine Tags;
• Add listeners to handle bookmark change events;
• Develop custom RSS crawlers to perform automated bookmark imports; and
• Create third-party mashups from data published by gnizr (RDF, RSS and JSON).

Screenshots

• See gnizr screenshots on flickr.

Technology

• Built-on Java Servlet technology (WebWork + Spring)
• Front-end pages are written using the Freemarker template language
• MySQL backed database. All database operations are implemented as stored procedures.
• Semantic tag relationships are modeled based on the SKOS ontology.
• Supports various metadata output format: GeoRSS, RDF (SIOC + Tag Ontology), RSS, Timeline XML and Clustermap XML.
• Geocoding machine tag uses Geonames web service.
• Full-text search engine built-on Apache Lucene API.
• Open search interface and Firefox search plugin built-on the OpenSearch standards.

Credit

Our Atlassian FishEye hosting is kindly provided by Atlassian.