ASSOCIATED PRESS - Oct 21 - 38% of single Americans have used an online dating site or mobile dating app, according to a new study from the Pew Research Center's Internet and American Life Project. 59% of Internet users agree that online dating is a good way to meet people, up from 44% in 2005. Match.com is the most popular dating site, just as it was in 2005. No. 2 this year is eHarmony. 29% of respondents say they know someone who has been in a long-term relationship or married someone they met online, compared with 15% in 2005.