Over the years that the Protectorate has been serving onlinePern it has sent literally hundreds of potential candidates to different weyrs all around the web.
This is a full, relatively up to date listing -- with links -- of all those riders, in order of Rank, and mostly in order of which weyr they were adopted at. Those listed from the same weyr online will be roughly in chronological order from top to bottom, in addition.
Those dragons listed as "Adopted" are not impressed -- they are from abandoned sands, and are thus not technically "as" bonded as their impressed counterparts.