Offers network appliances for network infrastructure management through server load balancers, firewalls, Internet gateways, cache controllers, and traffic monitors.

A survey of Linux NAT technologies, including loads of information/pointers on load balancing.

Makers of Central Dispatch (load-balancing) and Global Dispatch (DNS-based wide-area load balancing). The software runs on a variety of Unix systems.

A load balancer for simple tcp based protocols such as http or smtp for Unix.

Creates high availability and load balancing of Internet servers by distributing traffic according to client proximity, server load and network health.

An Open Source load balancing TCP proxy.

BalanceNG is an IP load balancing software solution running on Linux or Solaris.

Offers load balancing and server monitoring services.

Offering Internet traffic management solutions covering load balancing, network monitoring, content switching and clustering.

Provides router clustering with load balancing and failover of Internet lines.