In this issue:

• Effective collaboration leads to earlier article promotion

• Deleted revisions in the English Wikipedia

• Wikipedia and open-access repositories

• Quality of featured articles doesn't always impress readers

• In swine flu outbreak, Wikipedia reading preceded blogging and newspaper writing

• Extensive analysis of gender gap in Wikipedia to be presented at WikiSym 2011

• "Bandwagon effect" spurs wiki adoption among Chinese-speaking users

• In brief

You can post suggestions and contributions for the next issue at: 

http://meta.wikimedia.org/wiki/Research:Newsletter

Dario