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.

The Differences Between iPhone and Android Users Based on Digital Coupons

Android users are manly-scented, pork-eating, bird lovers, while iPhone users are feminine-smelling, chicken-eating, fish owners. So says Coupons.com based on data extrapolated from the coupons selected by iPhone users and Android users. The company analyzed coupon usage via its Grocery iQ shopping list application between Jan 1, 2010 to July 31, 2010.  Other notable differences between iPhone and Android users based on their digital couponing behavior:

• The top coupon in the Body Wash category among iPhone users was for women's body wash, which was 8 times more popular than the same coupon among Android users. Men's body wash topped the list among Android users.

• Chicken was the most popular item in the Dinner Meats category among iPhone users, while pork ribs was most popular among Android users. iPhone users printed or saved the top chicken coupon six times more than Android users.

• The top Household Cleaner/Supplies coupon among iPhone users was for multi-surface cleaner, while Android users gravitated to continuous toilet bowl cleaner.

• In the Pet Food category, fish food was the most popular item with iPhone users, who snagged the top coupon 26.2 times more than Android users. Bird food topped the list among Android users.

• In the Personal Care category, coupons for baby products were overwhelmingly more popular with iPhone users; these offers were printed or loaded to loyalty cards from iPhones 41.7 times more than from Androids. Conversely, Android users selected pain relief coupons 2.1 times more than did iPhone users.

Older Adults Double SocNet Use

US adults 50 and older have increased their social networking use from 22% to 42% in the past year, according to data from the Pew Internet & American Life Project.