Cloud computing nowadays has emerged as one of the important aspect to distributed computing. Organizations are adopting cloud computing (Escalnte, D. and Korty, A.J., 2011. Cloud services: Policy and assessment. EDUCAUSE Review 46(4).) for performance upgrading as one of parameter
and also for cost effective computing. In same context to increase resource utilization and energy efficient techniques are developed using green cloud. These green datacenters provide overall efficiency to cloud database and thereby will be beneficial to distribute load to virtual machines.
Green cloud therefore provides environmental benefits by reducing energy consumption by creating virtual machines and balancing there load. This paper will include detailed review for various load balancing strategies as algorithm which are applicable in any environment with respect to cloud
and variety of parameter for load balancing.