Twitter is continuing an upward trend by increasing its market share of visits from 1.28 in June to 1.40 in July. Twitter has gained a lot of market share since December 2010, moving from 0.93 to 1.40%.
Facebook and YouTube are stable around 63% and 20% mark respectivley. LinkedIn is slightly down from 0,52% in June to 0.48% in July, this could probably be attributed to vacation period and LinkedIn should be back up in August/September.
Google Plus is not yet on the Top10 list of social networking sites by market share of visits. Depending on its growth rate it could be on this list already in August. Some signs show that the Google+ growth has stalled. Alexa shows a distinct drop in the last week.
The chart below is in logarithmic scale so that the smaller sites wouldn’t just a single line around 1% of social network market share. Every month in the chart lists the top 10 sites of that time by the market share of visits. Please note that it is just a percentage and 30% in January 2009 is a lot less than 30% in September 2010. The gaps in the the lines mean that the site wasn’t in the top 10 at that time.