Offline Navigator Web Browser
Offline Navigator helps to surf the Internet faster. Offline Navigator is one of the fastest known website downloaders available today
http://www.softwarea.com/offline.htm

AIMMachine.com Offline Messaging
Finally message your offline buddies! AIMMachine allows AOL(R) Instant Messenger(TM) users to send messages to buddies even when they're offline. Subprofiles are also available.
http://www.aimmachine.com/

Offline Explorer
Oleg 'Arny' Chernavin is the author of offline browser Web Downloader and its successor Offline Explorer.
http://www.geocities.com/SiliconValley/Vista/2865/

WebStripper
WebStripper Offline Browser. Download Web Sites and Browse Offline
http://webstripper.net/

Offline Explorer
MetaProducts Offline Explorer is a Windows NT/2000/XP/2003/Vista program that allows you to download an unlimited number of your favorite Web and FTP sites for later offline viewing, editing or browsing.
http://www.metaproducts.com/OE.html

NetGrabber
Super DVD Factory,divx wmv asf avi to dvd convertor,video dvd disc maker,DVD Creater,convert AVI to DVD,Convert DVD to AVI,Convert DVD to Mpeg.VCD maker Create VCD form AVI or Divx,and burn VCD/DVD to your blank CD.
http://www.fuzzsoft.com/

Offline Commander
Downloads webpages or entire websites for offline browsing and fast full-text searching. Filters files by URL, size, type.
http://www.zylox.com/

Building a (fast) Wikipedia Offline Reader
Article by Thanassis Tsiodras describing how he put together a searchable offline version of the online encyclopedia using various open source tools.
http://www.softlab.ntua.gr/~ttsiod/buildWikipediaOffline.html

WebStripper
WebStripper Offline Browser. Download Web Sites and Browse Offline
http://www.webstripper.net/

MultiMail Offline Reader
MultiMail is a Blue Wave, QWK, OMEN and SOUP offline packet reader for Unix/Linux, DOS, OS/2, Win32 and Mac OS X
http://multimail.sourceforge.net/