Sounds like you have something called Fordyces spot.
More info and pictures here:
http://en.wikipedia.org/wiki/Fordyce's_spot
If they match the same kind of thing you have, then its 100% normal and you have nothing to worry about.
I have them on the top of the foreskin (and theyre yellowish too) theyre pretty hard to see unless you're looking closely
frankly, i hardly notice them anymore - let alone anyone else.
If your spots look different then probably best to see a doctor