I usually point people to this forum for answers to many of the questions:
http://www.imminst.org/forum/Resveratrol-f312.html

We regard these folks as very knowledgeable people when it comes to finding the best way to take resveratrol. Many are students, informed skeptics and some are chemists.

In the end most folks taking more than 1 gram in powder form, will mix the 99% resveratrol powder with lecithin, milk, or alcohol. Folks that take less than 1 gram, usually take it with lecithin or milk (or whey protein).

My wife takes 500mg in the morning, and 500mg in the evening, while I personally take 2 grams in the evening with milk or whey protein shake.

-Anthony Loera