There's a lot here, so sorry that I am just dumping links in, but I'll be glad to come back and expand on anything if you like.
people of anniston, AL vs. Monsanto http://www.chemicalindustryarchives.org/dirtysecrets/annisto...
scotus scuttles lower court ruling to stop gmo planting: http://www.supremecourt.gov/opinions/09pdf/09-475.pdf
chimeric gene - http://www.cafc.uscourts.gov/images/stories/opinions-orders/...
general monsanto info - http://www.monsantowatch.org/
groundwater pollution - http://yosemite.epa.gov/r10/cleanup.nsf/4c5259381f6b967d8825...
monsanto uses front group to fund against anti-GMO ballot initiative - http://www.organicconsumers.org/monsanto/measureh122903.cfm
one of my favorites, can you see the parallels between Monsanto and the RIAA? You could point this one in favor of Monsanto, but if you are like me and think that pushing terminator seeds to small farmers is a terrible thing then you will see it a different light. Often times they give out the seeds free the first year then have you stuck on them, comparisons could be made to drug pushers: http://www.utdallas.edu/~liebowit/knowledge_goods/monsanto.h...
Here's one against the idea that Monsanto's products are "always better" than non-GMO agriculture: http://ourworld.unu.edu/en/monsanto%E2%80%99s-cotton-strateg...
Excerpt:
"Monsanto entered India in 2002 with some very compelling advertising. They claimed their engineered seeds would produce yields up to five times that of conventional cotton – 20 quintals per acre (equivalent to approximately 4.5 bales) compared to the 4 quintals (less than 1 bale) farmers were struggling to pull from their fields at the time. At the time, Monsanto admitted that their seeds costed more but insisted that investment would pay dividends.
Unfortunately the average yield of Monsanto’s GE cotton turned out to be nowhere near the advertised 20 quintals per acre. In reality the average output of the crop turned out to be 1.2 quintals per acre. Nowhere in India did it exceed 4 quintals per acre at the end of the harvest. To add insult to injury, farmers soon found out that the fibers produced by the Monsanto GE cotton plants were of lower quality. Instead of getting the usual $86 per quintal, they were only able to sell their crops for around $36 per quintal.
On average since 2002, of the farmers in India, many of whom fell into the Monsanto trap, one is committing suicide every 30 minutes. Many end their lives by drinking RoundUp."
The list goes on, if you've read this far and want more, I'll be glad to dig up some more of the material.