I would do it for altruistic purposes, but the Red Cross no longer wants my blood after living in Europe for 10 years.

In the UK, we don't get paid for donating blood (unless you count the free biscuits).

I donate whole blood whenever I can.

I can't donate because of the medication I take.

I have hemochromatosis. Regular bloodletting is the treatment.

I voted both, although I cannot donate anymore for medical reasons. when I did, I donated blood sometimes and plasma for pay others.

They love my platelets. Been doing it since the early 90s. This week I'm going to get a coupon for a free haircut! Last month they have me a water bottle. Plus they have free WiFi and cable! Or I can watch a DVD! It's all good.

I've had malaria numerous times in Haiti as a child, and dengue fever once, so not allowed to donate.

No-one will take my blood -- too many medications.

Lots of people donate at the Red Cross for nothing. Including me when I’m allowed to.

One thing I have always thought: people who are organ donors should get a free/paid for funeral or burial/cremated as the companies that take those organs make thousands of dollars in profit per each person. Yes, those organs are needed, but why has such a big business arisen around it?

I give blood every two months to give back to society and to "increase my karma, just in case?"
Better than 10 percent to a church. I give a donation every Christmas to different groups: no kill cat shelter; toys for tots; and last year a Christian orphanage in Ethiopia - why? Because i wanted to see the gentleman who runs it. I taught two of his boys, and he is legit and takes in all kids of any religion and the country is a mess. And he is one of the few Christians I respect. I had not talked to the man in ten years, but his son FB friended me and thanked me for helping get his life together, and although I believe he did that mostly by himself, his thoughts were appreciated.

The people who work in the mobile vans that come to my workplace in Silicon Valley every quarter, or so, have never once indicated that my donation of a pint could be remunerated. I'm curious, why is it allowed to pay someone to donate blood? We are, after all, DONATING! I've never been paid, never heard of anyone who I know having been paid, and find it rather 'twisted' to be 'incentivized to dontate.' Apart from a glass of orange juice and a sugar cookie, my only 'payment' comes from knowing that someone in need of my rather common blood type (A positive) will someday benefit.