1. the dipterists site Paul L.Th. Beuk Natuurhistorisch Museum Maastricht

3. History Initial idea for portal: October 2001 Draft content in static html pages Switch to use of Content Management System (CMS: PHP-Fusion) Online since 11 May 2004 Reasons for actual kick-off: – termination of asilidae-l – no option for attachments in Syrphidae mailing list

4. Features News

6. Features News Forum

9. Features News Forum Gallery

13. Features News Forum Gallery Articles

17. Features News Forum Gallery Articles Downloads

20. Features News Forum Gallery Articles Downloads Glossary

23. Features News Forum Gallery Articles Downloads Glossary Weblinks

26. Features News Forum Gallery Articles Downloads Glossary Weblinks Book reviews

28. Features News Forum Gallery Articles Downloads Glossary Weblinks Book reviews Marketplace

30. User facilities Search

32. User facilities Search Private Messages

33. User facilities Search Private Messages User groups

34. User facilities Search Private Messages User groups Submissions

35. User facilities Search Private Messages User groups Submissions Theme selection

43. last month 9 July 2009 – 8 July 2010 Visits by logged in members

44. Success determining factors Userbase composition – specialists, both professional and amateur – non-specialists, for example photographers Features – relatively high identification rate in forum Userbase behaviour – everyone is welcome, the RTFM mentality hardly exists – simple measures to prevent flooding by individual users – member approval prevents most spam ‘Page 1’ search result Cross linking