Wikipedia:Wikipedia Signpost/2009-05-18
- From the editor: Writers needed
- Chemistry data: WikiChemists and Chemical Abstracts announce collaboration
- Multilingual contests: Embassies sponsor article-writing contests in three languages
- News and notes: Wiki Loves Arts winners, Wikimania Conference Japan, and more
- WikiProject report: WikiProject Opera
- Features and admins: Approved this week
- Technology report: Bugs, Repairs, and Internal Operational News
- Arbitration report: The Report on Lengthy Litigation