I don't know if anyone has looked through this yet, but Google has started archiving full issues of old magazines... including over 20 years of Vegetarian Times:
http://books.google.com/books?id=aAcAAAAAMBAJ&source=gbs_summary_s&cad=0#all_issues_anchor The earliest issue they have (March, 1981) is a riot. I can't believe all these magazine issues are available online for free. Totally made my day.