Elgg是一款免费开源的社交网络系统(php/mysql)，以BLOG为中心实现社会网络化，一经问世，即好评如潮，更有人将其与大名鼎鼎的moodle相提并论。这个平台不仅获得了2007年最佳社会性网络开源CMS平台的荣誉，更得到了info world的最高评价。
Elgg v1.7.15 changelog:
Bug fixes:
* Fixed warnings thrown in search_get_highlighted_relevant_substrings()
about mb_strpos().
* elgg_get_entities() properly supports multiple selects.
* Fixed incorrect handling of viewtypes in js, css, and simplecache.
* Correctly translating "Embed / upload media" in Embed plugin.
* elgg_list_registered_entities() no longer returns all entities if none
are registered.
* Fixed possible DB exception in user validation by email plugin.
* Fixed OpenDD import.