Wade wrote:

Is it possible to exclude tags on searches? I know I can run a search and select "buildings" and "night". And I will get all the buildings photographed at night. But is there are way to do a search so I can have it exclude all the photographs tagged as "night". Obviously I could add a "day" tag but if there was a way to just exclude a tag from a search that would be great. Any ideas?

Thanks in advance for your help.

Today no !!!
We might add it in the future (but it's quite complicated)

Understood.  Its still a great search engine. Just thought I would check to see if its possible. Thank you for your time.