You didn't put in freeware UltimateZip http://www.ultimatezip.com/ and ZipGenius http://www.zipgenius.it/index_eng.htm which can also handle multiple file formats such as RAR.

There are also other freeware (but these handle ZIP format only usually) such as..

ZipCentral http://zipcentral.iscool.net/
FreeZip http://members.ozemail.com.au/~nulifetv/freezip/index.html
CAM UnZip http://www.camunzip.com/
JustZIPit http://free-backup.info/
EnZip http://website.lineone.net/~chris_m/
BigSpeed Zipper http://www.bigspeed.net/index.php?page=bszipper
BkZip http://www.bksoft.net/ (German!)

Its a Zip zip world!

Oops, didn't noticed that!

Anyway, FilZip and TugZip is new to me and looks great! Thanks for the information. Currently I'm using PowerArchiver.

Another highly compressed format is LZX which was a futher development of LHA. The LHA format was widely used in Japan, and also in the Amiga computer community years ago (together with the newer LZX format). Do you know that Microsoft's CAB compression (during the Windows 98 days) are based on LZX format?