Here is a list of services to which ping.fm and onlywire.com submit content.  This list was last updated May 4, 2010 and could change at any time.  Onlywire.com and ping.fm are unique services and both target different uses.  Ping.fm is primarily for status updates, but has some extra uses such as photos, blogging, and bookmarks.  Onlywire.com is just for bookmarks.

Here is the complete list of services for each site: