eljefe3 - 2:21 am on Mar 30, 2001 (gmt 0)

>>Does this apply to all search engines?

Not sure about the question but as far as manual submission goes I'd say look at the top forums here at webmasterworld. If you see the search engine mentioned by name, it is probably worth submitting by hand.

If your question is referring to number of submissions per day, 5 is safe for the various search engines.