The power of social media is not hidden from any one. Companies are investing millions of their advertising budget, on these sites, just to achieve their objective. The objective varies from the product and process with respect to each company. It could be anything from customer engagement to viral publicity, brand awareness or low client acquisition cost.

Today we bring you the very selective social networking sites, which are used by many companies for their promotion purpose. The list has been bifurcated into two. The first set is of 7 general using website, which every one use and another set comprises of 18 websites which is specially for entrepreneurs.