What would cause this?

[SEOchica]

Last month, I had 29 pages indexed by Teoma. This month zero. (according to marketleap)

What would cause this? The site itself still shows up when I search for company name...

[David Wallace]

It could be that your site/pages were not available for some reason or another when the Ask Jeeves/Teoma crawler attempted to re-visit them. If that be the case, they should show up once again in the future upon the crawler's next visit and update of the public index.