There exist several well-motivated candidates for non-baryonic cold dark
matter, including neutralinos, axions, axinos, gravitinos, Wimpzillas. I review
the dark matter properties of the neutralino and the current status of its
detection. I also discuss the axino as a new interesting alternative.Comment: Invited plenary review talk given at 6th International Workshop on
Topics in Astroparticle and Underground Physics (TAUP 99), 6-10 September,
1999, Paris, Franc
