Through Wikipedia, I sent an email to Rep. Stivers. Both sites for Portman and Sherrod Brown weren't loading for me. This took me all of 3 minutes to type, but in the true spitit of Intarwebs info-sharing (and to get more of you to get your rep's involved!) please feel free to copy/paste/modify below...
Good morning, Steve!
I have met and worked with you on various Upper Arlington and Central Ohio events over the last several years, and I hope you're doing well. I was trying to go about my day, ignoring the "blackout" that many sites are staging in protest to SOPA and PIPA. However, after searching for information related to a company I clicked on a Wikipedia link and was shut down. I realized now that I need to make my voice heard.
Please do what you can to keep the Internet censorship-free. Personally, I understand lost revenue through stolen IP and pirated materials, but these regulations go too far; leave issues up to the individuals and corporations to fight. We have a legal system that should be more than adequate to defend U.S. citizens and corporations from harm. We have greater issues to worry about in keeping the U.S. economy viable in the future.
Thank you for letting me speak my opinion. Have a great day!
EDIT: I meant to say that you can copy/paste elements of my above message in your own words if you'd like.