I have seen site offering submission to 40 search engines at once and wondered if I should do this? I am already listed in Google and Yahoo but 38 others would extend my reach. However, if I use this 40 submissions it will resubmit to Google and Yahoo which maybe considered spamming?! What should I do? Is me submitting a good idea?
It's a bit pointless. Most of those 40 will take their results from google or yahoo, and / or else they're only used by one man and his dog.
I don't think you will need to submit this extra 38 SEs. And there is no point to resubmit to G and Y either.
Frankly those other 38 sites are probably worthless, they will pick you up by themselves if they are of any use at all.