United Online was formed in 2001 with the merger of NetZero and Juno. That same year, United Online began trading on the NASDAQ.
The company began to report a profit the following year in 2002. Also in 2002, United Online acquired Bluelight.com from Kmart Corporation.
In 2004 the company acquired consumer web hosting business from About.com. Also in 2004 the company acquired Classmates.com.
From 2005 to 2008 United Online acquired and created many new subsidiaries, including Netzero DSL, The Names Database, MyPoints, and FTD Group, Inc.
Today United Online operates subscription-based social networking sites, including Memory Lane, Classmates, and StayFriends. It also operates rewards membership program MyPoints as well as internet access and web hosting. In 2013 the company spun-off its largest subsidiary, floral retailer FTD.
United Online has 1,500 employees and had $862.83 million in revenue in 2013.