Analytical solutions of the equations of motion and energy of a second grade fluid for the developed flow over a stretching, sheet with slip condition are presented. The electrically conducting fluid occupies the semi-infinite porous space. The non-linear partial differential equations and boundary conditions are reduced to a system of non-linear ordinary differential equations and boundary conditions by similarity transformations. Homotopy analysis method (HAM) is implemented to solve the reduced system. Graphs arc plotted for various values of the emerging dimensionless parameters of the problem and discussed. (c) 2008 Elsevier Ltd. All rights reserved.