A new study from RadiumOne reveals that hashtag users are leveraging them primarily to communicate personal ideas and feelings (40.7%) and to search or follow categories and brands of personal interest (34.1%). The survey, which finds that 7 in 10 use hashtags while on a mobile device, shows that hashtags can be a meaningful tool for brands: about 1 in 5 respondents said that hashtags are good for finding brands and products.

via Hashtag Use Driven by Self-Expression, Content Discovery.