My blog has disappeared from listing

Hi,
I've just noticed that my blog <site name removed> has disappeared from listing in this category:
<category removed>
It still came out when searched so I guessed it was only removed recently.
Could somebody shed me some light on this?
What can I do to get it re-listed?
Thank You

We do not discuss specific sites here at this forum so I've removed the details (category and site name) from your posting. The typical reasons for a previously listed site to be removed are that the site no longer fits the category (or is deemed to be no longer listable at all) or the site was unavailable.

Thanks for the reply.
How can an owner of a site know the reason behind his/her site's removal?
I'm sure the person who removes a site knows exactly why he/she removes it.
(Sorry for my English, I'm not a native speaker)

Sorry to say, but the ODP does not provide any information about individual sites to non-editors.