Want to know when Facebook users are most active?

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Right now, Wednesdays at 3pm Eastern time!!!

Here are some key findings reported by Mashable of a study by Vitrue on the times when Facebook's users are most active:

• The three biggest usage spikes tend to occur on weekdays at 11:00 a.m., 3:00 p.m. and 8:00 p.m. ET.
• The biggest spike occurs at 3:00 p.m. ET on weekdays.
• Weekday usage is pretty steady, however Wednesday at 3:00 pm ET is consistently the busiest period.
• Fans are less active on Sunday compared to all other days of the week.

Great news for businesses wanting to know the ideal times to post status updates on their Facebook pages.  Read more of Mashable's summary of the Vitrue study, here.
See also: 3 Twitter Tools to Determine the Best Time to Tweet