Eric Sprott's strongest long term investments are:
1. precious metals; first and foremost silver and secondly gold.
2. Agriculture including potash,they have substantial positions in STB, AAA and FED. They're also purchasing large tracts of farmland, including in Canada.
3. Energy, particulary oil.
Sprott articles are located:
http://www.sprott.com/Default.aspx?uType=can