It would probably be cheaper for sendwrite to put all the envelopes in a priority mail box and ship them all together.<p>The white house mail room will anyway do the final sorting to individual congressman, and this way you don't have to pay postage on each letter.<p>But still individual envelopes though (inside the box).
Whoa, I can mail physical things from my computer?<p>Definitely checking this out.<p>Edit: Ah, looks like it is only for cards. I hope they add regular snail mail capabilities.
All those anti-SOPA letters and writings are useless and even hypocritical until people who write them stop supporting SOPA with their money. If you are not going to endure the inconvenience of boycotting SOPA supporters (Apple, Microsoft, MPAA, RIAA and others) to protect your freedom, you probably do not deserve the free Internet. Freedom has its price.