Heidi Bohan (http://www.heidibohan.com/) author of "People of Cascadia" (http://www.peopleofcascadia.com/) makes a soup out of stinging nettles, salmon, camas, bitterroot, seaweed, ozette potato, lady fern fiddlehead, cow parsnip shoots, horsetail and lomatium (biscuit root). She was loaded up with goodies from the "First Roots Feast" at the warm springs indian reservation.
Heidi shows how she prefers to prepare all of these foods and gives appropriate cautions for those plants that have counterparts that could lead to some confusion at harvest.
Heidi shows some dried stinging nettle that is several years old. And she talks about how she likes to dry stinging nettles.
Heidi mentions how stinging nettles are good for you because it helps to draw toxic gick out of your system.