Do I need to submit to each search engine that utlizes Dmoz, or does submitting to Dmoz alone take care of this. Eg. do I need to submit to AOL and the others individually or is this considered spamming.
Submit to DMOZ, then:
Don't submit to Google Directory (it's a copy of DMOZ) or search engine (it feeds on DMOZ)
Don't submit to AOL Directory (see above) or search engine (it either is now, or will soon be, feeding on Google.)
Don't submit to Netscape Directory (ditto). Netscape doesn't have its own search engine.