Public Comment Site from Regulations.gov, a searchable database of opportunities to comment on different aspects of drilling or any other issue, for that matter.
Sign a Petition or Start One of Your Own (but be aware that these sites often come from organizations that may ask for donations after signing or may send emails in the future to signers)
The Petition Site
Free Conference Calling Services (but be forewarned that the calls are not toll-free and use up cell minutes)
Free Conference Call.com
Free Conference Calling.com
Free Virtual Meeting Services
Skype (though number of video callers is limited to 10)