Should I list all of my work history on my resume?

Fellow hackers, coming out of college I was told to make my resume a single page long. I complied and therefore could only fit my most recent three tech related employers/internships on my resume. At what point should I abandon this idea and put all of my technology related work history? Would it be a disservice to me to list everything, even if it could be several pages long? For the record, I have about two years of experience.

I've also been thinking about dedicating an entire page to a table that lists all of the languages I have experience in along with the expertise of my knowledge for each.

I realize there are no "rules" for resumes. The only rule is whatever gets the attention of a potential employer. You can do whatever you want. However I was hoping for your opinions/philosophies based on your own experience about what best works. Thank you.