I mean the submission url for its search engine, not its directory. Anybody knows please help post it out.
I think it will find your web site if you have incoming links pointing to your web site. There are rumours that sending via ADD-PAGE or SUBMIT-PAGE may decrease your site rankings (who knows for how long...), so better get some links and let the search robot find your web site on it's own !
About.com does not have its own URL on the following list http://webdesign.about.com/od/addurlpages/Add_URL_Pages.htm I am not sure if they have one.. Thanks
I think their search is only for their site, there's a thing at the bottom of this page ( search.about.com/fullsearch.htm ) about submitting a link to a guide if that's what you mean.