People are crazy about social media statistics. It seems like research, PR, and publishing firms are coming out with new studies virtually every week. These stats often surprise us, and we use them for blog posts, Facebook updates, and tweets.

We also use them for our presentations.

Whether it’s a presentation for a local trade or professional organization, or an internal presentation within your company or agency, social media stats are useful “objects” we share, note, and remember.

Here are some statistics I’ve stumbled on lately. I thought these data points were interesting for various reasons. You may find them worth noting for use in future presentations.

• 33 percent of all Facebook users update on the platform using a mobile device, but just 4 percent of those use an iPhone and 5 percent use an Android phone. [Source: Dan Zarrella, HubSpot]

• Among consumers, 55 percent said they would consider using Facebook Places; only 6 percent said they would consider using Foursquare. [Source: David Griner, Luckie & Co.]

• Among early adopters, 90 percent said they would consider using Facebook Places; only 22 percent said they would consider using Foursquare. [Source: David Griner, Luckie & Co.]

• Location-based sites and services (such as Foursquare and Facebook Places) are familiar to 30 percent of Americans age 12 and older and used by 4 percent of Americans age 12 and older. [Source: Tom Webster, The Social Habit]

• Nearly a quarter of social network users indicated that Facebook is the social site or service that most influences their buying decisions. No other site or service was named by more than 1 percent of the sample, and 72 percent indicated that no one social site or service influenced their buying decisions the most. [Source: Tom Webster, The Social Habit]

• Twitter is as familiar to Americans as Facebook (with 92 percent and 93 percent familiarity, respectively); however, Twitter use stands at 8 percent of Americans age 12 and older. [Source: Tom Webster, The Social Habit]

• Fifty-seven million people read and follow blogs. [Source: Blogging, April 2011, B2B Social Media Guide]

• More than 12 million adults maintain a blog. [Source: Blogging, April 2011, B2B Social Media Guide]

• Approximately 20,000 users contribute more than half of all Twitter content, which is .01 percent of total users. [Source: Blogging, April 2011, B2B Social Media Guide]

• How social networking site use breaks down: 92 percent use Facebook, 29 percent use MySpace, 18 percent LinkedIn, 13 percent Twitter. [Source: Pew Internet and American Life Project, Social networking sites and our lives, June 16, 2011]

• On Facebook on an average day, 22 percent of users comment on another’s post or status, 20 percent on photos, 26 percent “like” another’s content. [Source: Pew Internet and American Life Project, Social networking sites and our lives, June 16, 2011]

• Nearly twice as many men use LinkedIn (63 percent compared with 37 percent of women). All other social networking sites have significantly more female users than male users. [Source: Pew Internet and American Life Project, Social networking sites and our lives, June 16, 2011]

• From 2008 to 2010 the percentage of people using social networking sites fell among 18- to 22-year-olds by 12 percent (from 28 percent in 2008 to 16 percent in 2010) and among 23- to 35-year-olds by 8 percent (from 40 percent in 2008 to 32 percent in 2010). [Source: Pew Internet and American Life Project, Social networking sites and our lives, June 16, 2011]

• Meanwhile, social networking use increased among 36- to 49-year-olds by 4 percent (from 22 percent in 2008 to 26 percent in 2010) and among 50- to 65-year-olds by 11 percent (from 9 percent in 2008 to 20 percent in 2010). [Source: Pew Internet and American Life Project, Social networking sites and our lives, June 16, 2011]

A version of this story first appeared on Arik Hanson’s blog Communications Conversations.

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