1)      Forexpros

http://www.forexpros.com/

With 63241 members and networks with 17 countries, Forexpros is a one of leading and credible global financial portal that constantly launches innovative features and optimal one-stop source for reader. As Forexpros is financial market world wide website, it includes information relating to the financial markets such as real-time quotes, financial news, and technical analysis. It also provides in-depth information on Currencies, Indices & Stocks, Futures and Options and commodities. Furthermore, Forexpros shows weekly outlook, 135961 professional analysis and opinions on grain futures, so I believe that the site is helpful to predict what will happen to the grain futures.

2)      Barchart

http://www.barchart.com/

This website is another provider of price quotes, charts and technical analysis for commodities, futures and options. It includes up-to-date market news, futures&commodities news and daily chart of the day report. Futures Market Overview section includes Futures Market Snapshot, quotes of commodity futures Markets, futures heat map and full list of major commodities to provide readers with easy-to-understand information.

Barchart Futures Market Heat Map