Some great business ideas seem so simple we wonder why no one ever thought of them before.

The backstory behind a bunch of household names, and tips to open your mind to inspiration.

At the heart of any successful business is a great idea. Some seem so simple we wonder why nobody thought of them before. Others are so revolutionary we wonder how anybody could’ve thought of them at all.

But those great ideas don’t come on command. And that leaves lots of would-be entrepreneurs asking the same question: How did everybody else get inspiration to strike—and how can we work the same magic?

Read more: http://online.wsj.com/article/SB10001424127887324445904578283792526004684.html?mod=e2fb#

Smartphone Penetration by Age Group

Nielsen recently published a study that revealed that only 43% of all US mobile phones users own a smartphone, while most subscribers under the age of 44 use smartphones.

Smartphones are most popular in the group of 25-34 aged, with 62 percent of them reported to own smartphones. And among those 18-24 and 35-44 years old the smartphone penetration rate is hovering near 54 percent.

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Percent of FortuneGlobal 100 Companies With Social Media Accounts

Brands are moving from simply being present on social networks to taking a more active role on the sites

Companies and marketers are more comfortable on social networks and have started to engage more authentically and build communities with other users on the sites.

Burson-Marsteller, one of the leading PR companies, looked at the FortuneGlobal 100’s activities on Facebook, Twitter, YouTube, corporate blogs and other local microblogs and social networks around the globe for its “Global Social Media Check-Up 2011”. 25% of these companies worldwide are using all four major social media platforms: Facebook, Twitter, YouTube and blogs – an increase of 25% from 2010 – and 84% are on at least one platform.

Most companies are on Twitter, which saw a major growth compared to 2010, as 77% of companies around the world have Twitter accounts, up from 65% last year. Twitter might be emerging as the predominant social media platform used by corporations, although corporate Facebook pages have more “likes” than Twitter accounts have “followers.” Read more