I’m always interested in fresh statistics & obscure metrics. Yes yes, everyone pretty much knows Facebook is massive – but how is it affecting business, particularly in the B2B & B2C sectors?

Hubspot released this useful slideshow titled: 12 Essential Facebook Stats [Data]

Should your business become active in Facebook? To help you make an informed decision about your company’s Facebook strategy, Hubspot compiled these fantastic Facebook business stats.

1. 93% of adult US Internet users are on Facebook. (source: BlogHer, April 2011)

2. One out of every eight minutes online is spent on Facebook. (source: ComScore, February 2011)

3. The average Facebook user spends more than 11 hours per month on Facebook. (sources: Bureau of Labor Statistics, June 2010 & Facebook Press Room, 2011)

4. Facebook is overtaking Google and Yahoo in total time spent online. (source: ComScore, August 2011)

5. Facebook has become the top choice for social sign-in. (source: Janrain, April 2011)

6. Facebook has become the preferred way to share content online, second only to email—for now. (source: Chadwick Martin Bailey, September 2010)

7. The average number of “likes” per post on a brand’s Facebook page is 54. The average number of comments per post is 9. (source: Visibli, April 2011)

8. More than half of B2B marketers agree that Facebook is an effective marketing tool. (source: Outsell, December 2009)

9. More than half of small businesses agree that Facebook is beneficial to their business. (source: Ad-ology, November 2010)

10. More than 1/3 of marketers say Facebook is “critical” or “important” to their business. (source: HubSpot State of Inbound Marketing Report 2011)

11. The number of marketers who say Facebook is critical or important to their business has increased 83% in two years. (source: HubSpot State of Inbound Marketing Report 2011)

12. 67% of B2C and 41% of B2B companies that use Facebook for marketing have acquired a customer through this channel. (source: HubSpot State of Inbound Marketing Report 2011)

Interesting statistics I’m sure you’ll agree. I found the stat; 1 in every 8 minutes spent online in the US was on Facebook very alarming – Facebook is growing quickly in the US. Still, i’m not sure how this compares to Australia. The Aussies spend the most amount of time on Facebook on average 8.19 hours a month. In terms of total time online, the average Australian spends 21.75 hours per week online (TV only 15 hours) which is a whopping 33% of all leisure time. In 2010 the average Australian spent only 17.6 hours online.