Cerulean Studios Trillian
Trillian is a mega-instant-messaging product. It supports AIM, ICQ, MSN, Yahoo, Jabber and IRC. So, instead of loading six different IM clients, you can use a single Trillian client. It supports encrypted communications, Yahoo Webcams, customized skins and global away messages that set your status on all connected networks. It also allows for meta contacts, which group multiple network IDs to a single visible contact. Suggested by Steven J. Schuchart. Platform: Windows. Price: Freeware (basic), $25 (pro). www.ceruleanstudios.com/products
VMWare Workstation 4
Running both Linux and Windows on the same computer used to mean having to dual boot: You'd run Windows, then reboot into Linux and reboot back into Windows. VMWare eliminates this by slicing up your computer into multiple virtual machines. Each VM has its own environment, containing its own virtual processor, memory, network access and disk space. This way you can run Windows and simultaneously boot a Red Hat machine, another Windows machine and a SuSE box. Such a setup is handy for system testing, developer work and doing demos that need multiple computers. And, unlike dual booting, you don't need to repartition your disks or muck with the boot loader. Each VM is separate, so there is no chance of one VM deleting or damaging another. VMWare 4 can take snapshots or a point-in-time copy of a running VM and revert back to it later. That gives you the freedom to experiment and break a system, then go back to a pre-existing state. Suggested by Bruce Boardman, Mike Fratto. Platform: Intel. Price: $299 (electronic distribution), $329 (packaged). www.vmware.com.
Putty