Yahoo Mash

{{refimprove|date=January 2008}}

Yahoo! Mash was a social networking service by Yahoo!{{cite news | url=https://bits.blogs.nytimes.com/2007/09/12/what-is-yahoo-mash/| title=What Is Yahoo Mash? | first=Brad | last=Stone | author-link=Brad Stone (journalist) | work=The New York Times | date=Sep 12, 2007 | url-access=subscription}}

Yahoo! Mash pages were composed of modules, such as photos or common friends, that could be added by their users or their contacts.{{cite news | url=https://www.adweek.com/digital/15-cool-modules-to-beef-up-your-yahoo-mash-profile/ | title=10 Cool Modules to Beef Up Your Yahoo Mash Profile | first=Arnold | last=Zafra | work=Adweek | date=January 6, 2008}}{{cite news | url=https://techcrunch.com/2007/09/14/yahoo-invites-us-into-mash-its-new-social-network/ | title=Yahoo Invites Us Into Mash, Its New Social Network | work=TechCrunch | date=September 14, 2007}}

Unless the feature was disabled, users were able to edit other users' pages.