Following are findings from recent studies on marketing and advertising-related topics. For a more in-depth look at these subjects, visit our sister site, MarketingCharts.com.

Women Click More, Men Act More

Women deliver a 23% higher click-through rate than men, but after clicking, men following through with an action - such as downloading a whitepaper, starting a free trial, making a purchase - at a rate that is 53% higher than women, according to a survey [pdf] by Bizo. Other differences between the genders: men are night owls - 3:00 am ET is the hour when they are most likely to click. Women are morning people - 5:00 am ET is when they are most likely to click. Men are most likely to act at 4:00 pm ET; women are most likely to act at 11:00 am ET.

Tweetie iPhone App Driving Twitter Growth

Mobile usage of the Twitter social network has increased more than 60% in the past five months, according to data from Twitter. It found that total number of mobile Twitter users grew 62% between April and September 2010. Mobile access is driving much of that growth: the number of Twitter users who start out using Twitter via mobile device has risen from 5% to 16% and close to half (46%) of all Twitter users at least occasionally access the network via mobile device. Twitter cites its April 2010 purchase of the Tweetie iPhone application as the catalyst for this growth.

Internet, TV Best Source for Sports Stats

Nearly one-third (31.5%) of respondents to a Burst Media survey cite the Internet or national television programming (30.4%) as the best resource for sports-related news and information, routing other forms of mass media. Sports fans use the Internet to check scores and stats (59.2%); read sports-related news stories and commentary (47.4%); and watch sports-related videos and clips (35.6%). A plurality (31.3%) of respondents cites between 5 p.m. and 8 p.m. as when they are most likely to visit sports-related sites and resources on the Internet.