Example image of eyePlorer eyePlorer map for 'Virtual community': E-mail Instant messaging Newsletter Social group Social network service Telephone Computer network Avatar (computing) Social software Social network Howard Rheingold Community Usenet Web 2.0 Reciprocity Social contract TheGlobe.com Blog Delicious (website) Facebook Flickr BigTent Google Groups IBM Lotus Connections LISTSERV Microsoft SharePoint Yahoo! Groups Massively multiplayer online role-playing game Amy Jo Kim Epistemology Ontology Idealism Materialism Essentialism Nominalism Royal Society Barry Wellman Melvin M. Webber Benedict Anderson Imagined communities The WELL Chat room Electronic mailing list Internet Relay Chat MOO MUD MUSH World Wide Web American Journal of Sociology Mark Granovetter