A new survey of 500 online marketers by Webmarketing123 seems to indicate that of the following online marketing approaches - SEO, PPC and Social Media - SEO has the bigest impact on lead generation. However, what's really interesting is that over 50% say they will increase their Social Media spend in 2012. The stats indicate that SEO has the biggest impact on lead generation, with 57 percent of B2B marketers saying that SEO is their primary source of generating leads whilst 41% of B2C marketers say its their primary source.
Here are some other interesting stats:
53% of all participants say SEO makes the biggest impact on lead generation, followed by 28% for PPC and 19% for social media.
Here is an interesting infographic generated by Wemarketing123: