Claims "Everything you wanted to know about rubber" and indeed, they supply lots of information.

The IRSG is the authoritative source of statistical data supplied by Member Governments and other countries and organizations on production, consumption and trade in rubber and rubber products within the world rubber industry. It also provides a forum for the discussion of matters affecting the supply and demand for both synthetic and natural rubbers

Natural rubber research and elastomer consultancy:

Rubber Asia is India's most prestigious and popular international magazine on rubber. Its first rate quality in production and contents makes it the largest circulated magazine on rubber in Asia and is fast gaining popularity in Europe and the USA.Rubber Asia covers all sectors of rubber (industry, plantation, trade, marketing, technology, research, companies and personalities) in depth and world wide.

Possibility to subscribe online.