Without much surprise there has been significant movement within some of the social networks over the course of the last year. Brian Chappell from Ignite Social Media has put together a comprehensive report based on data from all major social networks existing on the web.
Hibernate Spatial is a generic extension to Hibernate for handling geographic data. Hibernate Spatial is open source and licensed, like Hibernate, under the LGPL license.
Hibernate Spatial allows you to deal with geographic data in a standardized way. It abstracts away from the specific way your database supports geographic data, and provides a standardized, cross-database interface to geographic data storage and query functions.
Hibernate Spatial supports most of the functions of the OGC Simple Feature Specification. Supported databases are: Oracle 10g/11g, Postgresql/Postgis, and MySQL.
P. Eklund, S. Kirkby, и S. Pollitt. Australian and New Zealand Conference on Intelligent Information Systems (ANZIIS '96), стр. 329-333. IEEE Press, (1996)Simon Pollitt's paper on shortest path implementation in firemaster.
J. McGee, J. Caverlee, и Z. Cheng. Proceedings of the 20th ACM international conference on Information and knowledge management, стр. 2333--2336. New York, NY, USA, ACM, (2011)
D. Porta. Proceedings of the 2nd International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies (UBICOMM-08), стр. 438-444. IEEE Computer Society Press, (2008)
M. Sawada, D. Cossette, B. Wellar, и T. Kurt. Government Information Quarterly, 23 (3):
454-479(2006)M3: Article; Sawada, M. 1; Email Address: msawada@uottawa.ca; Cossette, Daniel 1; Wellar, Barry 2; Kurt, Tolga 3; Affiliations: 1: Laboratory for Applied Geomatics and GIS Science (LAGISS), Department of Geography, University of Ottawa, Canada 2: Department of Geography, University of Ottawa, and former Advisor for Federal Task Force on Tax Benefits for Northern and Isolated Regions, Canada 3: School of Information Technology and Engineering, University of Ottawa and Research Engineer for Ericsson TEMS, Canada Source Info: 2006, Vol. 23 Issue 3/4, p454; Thesaurus Term: WIRELESS communication systems; Thesaurus Term: BROADBAND communication systems; Thesaurus Term: GEOGRAPHIC information systems; Thesaurus Term: INTERNET service providers; Number of Pages: 26p. Document Type: Article.