• Feedlinx
  RSS shreduled email or notification service with import and export. 'The read status of your feeds will be tracked acress mutiple machines and readers'
  Feedlinx is a free online service that allows you to receive RSS & ATOM web feeds via email. You can also track the 'read' status of your feed posts across multiple machines and feed readers. Create a custom feedroll for your blog.
  aggregators atom email feed feeds multiple read readers rss status web
  in Public bookmarks with manager notification online rss service sync
• Rseven - Mobile Backup and Sync Service
  Rseven archives all the data recorded by your phone into a website. As your phone documents your daily activities, Rseven website shows your life journey in a timeline and displays the strength of your relationships with the people that you communicate with". Rseven mobile client on the phone collects the data from the phone and uploads them to the Rseven.com website. The Rseven mobile client also synchronizes the phone's contacts
  in Public bookmarks with backup mobile service sync by 2 users
• SearchBox Sync
  in software (offline) > mozilla > extensions with document extension mozilla searchbox sync
• Spanning Sync
  Service that keeps your Apple iCal calendars in sync with Google Calendar.<br>
  in Public bookmarks with google ical service software sync by 4 users

sync from all users