Mario inside Thinktank Planetarium, the UK's first purpose-built digital dome, which he launched in December 2005 and managed for eight years.
Facebook fans were thanked for their support by having their names added to milestone tributes on the dome (which encouraged more planetarium visitors to become fans).
3,000 fan tribute (click to enlarge)
4,000 fan tribute
5,000 fan tribute (click to enlarge)
There were also regular incentives to promote engagement and attract more fans. In just four years, we grew our fan base organically from zero to over 6,000 fans.