MindMeister allows users to create and share mind maps online in real-time with global collaborators who can see changes as they happen. Vocaroo is a service that lets users record and share voice messages by attaching them to emails or posting them online, with recordings deleted after one year for non-accounts but not for free accounts. SlideShare is a site where users can upload and share slide presentations in various formats for viewing on devices or embedding on other sites.