As you can guess from the subject, the question is straight forward.
Who are the crawlers, and who do i need to submit each and every page too ?
I am mainly concerned with English speaking web - which crawlers, indexers, need to be submitted to independantly, even though they are the same company. i.e lycos.co.uk and lycos.com. AV, excite, others.
Below is lists of who i think are the crawlers, and who i think are indexers, along with comments on different country versions, pulling on different resources.
Please edit or add to the lists, engines or comments on feeds ?
Crawlers (base url - find internal links, index them pages)
Google (draws from yahoo and odp, all country versions the same)
Fast (only one version - don't know if it feeds of anyone, though feed poss by lycos and hotbot).
Ink (feeds partners algo's, manipulated differently by them, is feed by partners)
AV (each directory has different crawlers)
Direct Hit (only one, feeds partners - MSN, Lycos, etc.)
Northern Light (own maintained db - own crawls, feeds no-one)
Indexers (need to submit each page)
Anzwers (only one - feeds itself and Ink.)
Lycos (many, different regionals - feeds itself, is feed by Fast, DH, and different resources regionally)
Excite (Feeds of partners, and itself, different regionals with different resources)
Sympatico (feeds of partners, lycos, fast, dh and more)
Hotbot (feeds of lycos, fast, itself)
Webcrawler (feeds of excite, and partners)
Canada.com (feeds of direct sub, now closed unfortunatley, feeds Ink.)
There are more such as AOL, netscape, TERRA (latino), Share (european) and others.
Then Obviously there are the big directories.
Looksmart & Partners (.com & regionals - language and domain dependant)
Small national directories (some domain and language dependant)
Any advice or knowledge that anyone is willing to inpart on these matters would be greatly recieved.