Branding
Metlink developed a master style guide for timetables, maps and other customer information, to complement the graphic design style of signage. The Metlink brand signage was implemented in 2003, with progressive replacement of the heterogeneous signage previously used by the various (some defunct) public transport operators at railway stations, tram and bus stops throughout Melbourne.
Under the Metlink branding system, railway station signage and timetables were colour-coded Blue, tram stop signs and timetables were colour-coded Green, and the bus network was colour-coded Orange. Additionally, the regional train and coach network was colour-coded Purple. This colour scheme has also been adopted by the successor public transport operator, Public Transport Victoria.
Marketing
Metlink also acted as a marketing entity for public transport, and released several television advertisements. However, this was not an exclusive arrangement, as a separate set of TV advertisements was produced by former train operator Connex (featuring Sheena Easton and a trainload of passengers singing her 1980 hit Morning Train (9 to 5)) during April and May 2004. In mid-2005 Connex launched another independent print and television advertising campaign, this time focusing on its safety initiatives, and featuring Humpty Dumpty. In 2006, Connex launched a TV campaign Don't Hold Others Back focusing on encouraging courtesy on the Melbourne Rail Network.
Metlink was also active in encouraging use of "value Metcards" (pre-purchased multi-trip and periodical tickets) and ran a humorous campaign promoting this called BATBYGOBSTOPL (Buying A Ticket Before You Get On Board Saves Time Or Problems Later). In July 2007, Metlink launched a new campaign, "I Highly Recommend You Get on the Bus", featuring comedian Frank Woodley, to promote improvements in bus services and, following that, the "Take it Easy, Take the bus" campaign.