Muhammad Saleem has posted his powerpoint presentation from the San Francisco Web 2.0 Expo. The presentation is called: Free Traffic: Social Media Optimization and Marketing 101.
Want to know the best times to submit your content to Digg, Del.icio.us, Reddit, and Mixx? Jake Luciani has done the research for you.
Luciani’s conclusion: between 1pm and 3pm PST (after lunch) or between 5pm and 7pm PST (after work) are the best times and Thursday is the best day. The worst time to post? Between 3 and 5 PM PST on the weekends – nobody cares. See the graphs below.
From my own experience Reddit tends to work best for me between 9am and noon EST on weekdays. Perhaps there is some variation with different types of content.
Dosh Dosh takes a critical look at the value of having “friends” on social media sites. He concludes:
Basically, you have nothing to lose and everything to gain when someone adds you as a friend on any social media website. They are giving you permission to share messages with them while bestowing attention on your recommendations/actions within the social site.
If you’re trying to get maximum visibility for your message, develop a popular social profile that has a large amount of fans in order to take advantage of the innate advantage that comes from communicating with a large number of people at once through a specific action.
This matches with my experience quite well, especially on Digg and Stumbleupon. I’ve seen a seemingly direct correlation between number of friends/fans and ease of making content go popular.