Agweb is interesting but it generally has a bullish sentiment. It is aimed at farmer/producers after all.
For weather related, Stormexchange http://stormexchange.com/. Has several sections, including ag-specific.
Kinda same topic.. can any1 share an idea, is this possvle to watch CNBC channel somewere in the web? And if so, any links? At least i didnt get the point, if its possble to watch it from their official web-site :-(
agdayta.com is good, worth the subscription definitely. futuresource.com is a good free one barchart.com
MF Global has some excellent research & commentary, as does RCG. RCG provides Hightower & Informa, and MF Global provides text commentary, as well as audio commentary from the floor up to 5 or 6 times/day most days.