Can my site be listed in more than one directory

I have my site listed in directory. Classifiieds->Free Classifieds
There are different directories my site could be listed as well and i see few of my competitors listed listed there twice or more. Is it possible to do that?
thanx tomasz

In certain cases, yes. If you show us the URL we might be able to be clearer.

url is www.adsofamerica.com and i am listed in Classifieds/Free Classifieds and could be listed in
Classifieds/Automotive
Classifieds/Business to business

and (bestads.com) is listed (good for him!) in those directories.

thankx for your help.

My own take on this subject is that both sites mentioned should be listed ONLY in the ONE more specific category you mentioned. @links should be present to take visitors from the more general category to the more specific, so that the sites would apparently be listed in a single subcategory of Classifieds/Free (which was also apparently a subcategory of Classifieds/Auto/B2B.)

Your spotting this category overlap will, I hope, the the incentive needed to fix this flaw in the ODP taxonomy. (Thanks. This is one of the strong motivations for ODP editors to participate in public forums.)