1000 links from 10 forums related to solar energy,solar power,solar panels,wind energy,green energy,alternative energy,renewable energy, energy,power.
10 sites in all, 100 posts for each website.
posts should be relevant.
posts should be unique.
Home Page rank of forum should be pr 3 +
Links should be do follow
forums should be cached
There are huge number of high page rank forums available on above topics therefore use the best.