Dear David; Have a look at these sites for

Pub signs here: http://www.flickr.com/photos/markdodds/sets/72057594135486715/

And here: http://www.flickr.com/groups/pubsigns/pool/

And here: http://www.flickr.com/groups/beers/pool/

And London pubs here: http://www.flickr.com/groups/87464094@N00/pool/

And Welsh pubs here: http://www.flickr.com/groups/tafarndaicymru/pool/

And closed pubs here: http://www.flickr.com/groups/deadpubssociety/pool/