Last week, Nature announced its 2007 awards for scientific mentoring, in this editorial (subscription required: 446, 584; 5 April 2007). Nature is this year inviting nominations of outstanding scientific mentors in South Africa. The closing date for nominations is 31 May and we will announce the winners on 21 September 2007. The Editor-in-Chief of Nature, Dr Philip Campbell, will present the awards at a special event in Cape Town.