You may be looking for Riordon.ca, which contains a number of Riordon-family personal and corporate links.
You may also be looking for Manotick.org, a site replete with information about Manotick and containing many links, or possibly the St James Manotick website.

You may be looking for OOC Image, Hello Neighbour, or for Find Mac Stuff.

You may also be looking for what is undoubtedly one of the finest bicycle shops in the world, the excellent Velobrome, which has an even sparser (but more useful) website that Riordon.com.

You may also be looking for the art of Seann O'Riordain.

You might be looking for the site of Riordon Design, in Oakville, Ontario.

You may be looking for information on one or more members of the Riordon family or on RPC itself. If that is the case, we are unable to assist you as this information, while no mystery, is neither for the public nor the press.