I have seen some messages on this newsgroup that suggest removing the
flowers from herbs to keep them producing during the summer. Should I do
this with my cilantro, which is now covered with tiny white flowers? I plan
to harvest small amounts of it all summer.

I've always let them go to seed once they start to bloom--that way I get
corriander when the cilantro is done. But I think cilantro flowering is
equivalent to lettuce bolting.