Smartphone penetration is estimated to reach 50% of the market by the middle of 2011, and a quick glance at the cell phone market reveals quality, choice and affordability among devices are on the rise.

Beyond its brand building, link building and CRM capacities, social networks have become an important vehicle for getting your brand discovered.

Foursqure co-founder Dennis Crowley wasn’t too happy with the rather blatant ripoff by Yelp of its check-in feature. Yelp vs. Foursquare could be an interesting battle over local online advertising dollars.