A study by Gabrielle Borca, "et al" found that teenagers in 2012 were more likely to share different types of information than teenagers in 2006. However, they will take steps to protect information that they do not want being shared, and are more likely to "follow" others on social media than "share". A survey of U.S. teenagers from advertising agency J. Walter Thomson likewise found that the majority of teenagers are concerned about how their posting will be perceived by people or their friends. 72% of respondents said they were using social media on a daily basis, and 82% said they thought carefully about what they post on social media. Moreover, 43% said they had regrets about previous posts.