NumbersUSA, an overall immigration reduction group, has an action campaign to fax your Congress representatives on the brazen abuses of foreign guest worker Visas.

Recently, there have been several scandals related to companies abusing the H-1B high-tech worker visa program. Please send a fax to your Members of Congress and urge them to support efforts to reform the program and help put America's high-tech workers back to work.

They also are covering professional labor issues in this blog post:

High tech companies use legal guest worker programs to displace American workers and eventually move many Americans' jobs overseas. Although this harmful practice that has cost hundreds of thousands of skilled Americans their jobs has been ongoing for more than 15 years, it has received scant attention in Washington D.C. or in the national media. Most Americans outside the high tech industry may be learning about this shocking practice for the first time. But because of testimony given at a recent House Subcommittee hearing on H-1b visas and a whistle-blower scandal from within one of the largest users of the H-1b program, Americans are about to become enlightened.

NumbersUSA has the best action toolkit out there and you can choose which issues to use their system for.