The latest evidence that mobile devices are revolutionizing the way people use the Internet is striking for ecommerce -- and should be even more striking to the far too many companies that haven't established any ecommerce presence yet.

Ecommerce revenue generated on smartphones and tablets almost doubled from 2011 to 2012 and is expected to jump again by more than half this year, the International Business Times reported. Meanwhile, marketers are devoting more and more advertising spend to reach mobile devices with a 135 percent increase in one year.

How has the B2B community responded? Not well. The vast majority of B2B companies aren't just missing out on ecommerce spikes on mobile devices -- 75 percent of them don't have any ecommerce presence at all, mobile or otherwise.

Google's announcement that it will tweak its rankings to favor mobile-friendly websites and demote websites that don't work well on tablets and smartphones shows that the Internet community is moving onto the second step of the mobile wave: The mobile market is established, and now the world's most influential online company is moving to optimize it.

Yet the standing of B2B companies in a marketplace that's rapidly growing buds of opportunity is abysmal.

Three in every four B2B companies don't have an ecommerce presence, which means they don't have a mobile ecommerce presence. So while the rest of the online community is beginning to perfect the mobile experience, B2B ecommcerce has hardly approached the starting line.