Geico serves as an excellent example of a more thorough use of Twitter by an insurance firm, using two accounts to separate news and commentary from direct customer service opportunities.
According to autoinsurancequotes.net, the company’s main @Geico account serves as a conduit through which Geico presents its face to the world, offering news, promotional material and general hilarity in an effort to work within its historically fun branding scheme. On the other side of the Twitter-use spectrum, the @Geico_Service account works directly with customers, messaging back and forth using the public platform in order to make first contact easier for everyone involved.