Netscape Communicator 4.0.8 was the last version to support 68K architecture. Netscape Communicator 4 featured: WWW Browser E-mail Client News Client HTML Composer AOL Messenger  

RDP Client for MacOS9. This is a build of ProperJavaRDP for MacOS9. It may require MRJ 2.2.x  https://www.macintoshrepository.org/7361-java-mrj-2-2-6

Camino is a web browser for PowerPC that is fast, simple and powerful.  The first release was version 0.1 in 2002. Note: Camino is a failed product  

A Pure Java™ Browser for Developing Web-Enabled Solutions HotJava Browser 3.0 provides a highly-customizable modular solution for creating and deploying Web-enabled applications across a wide array of environments and devices. HotJava...

  Wikipedia Reader - An encyclopedia for classic MacOS Wikipedia Reader is an unofficial client to access Wikipedia's API to fetch encyclopedia articles and live search results and display them. It is written on and for...

A minimal new SSH client for Mac OS 7/8/9.   system requirements CPU: Any PPC processor, or at least a 68030 (68040 strongly recommended). RAM: 2MB. Disk space: fits on a floppy. System 7.1 or later. Versions below 7.5 require...

ShadowIRC is a new MacOS IRC client, written specifically with speed and extensibility in mind. ShadowIRC is extensible. How? ShadowIRC is extensible with C-coded plugins, compiled with CodeWarrior. This makes ShadowIRC plugins much faster and much...

Transmission is a BitTorrent client which features a variety of user interfaces on top of a cross-platform back-end. Transmission is free software licensed under the terms of the GNU General Public License (GNU GPL), with parts under the MIT License.

In its first 4 years, GameRanger was a Macintosh-only multiplayer online gaming service. As well as being Macintosh-only, it was the only service of its kind on the Macintosh in the 90's.  Since Windows XP, GameRanger is offered for both...

The Palace was an unique, cross browser, visual chat experience client/server software suite. In the end of the 90's, The Palace was an innovative chat solution where you could connect to an array of different themed servers and take place as...

Fetch is an advanced FTP Client and was maybe the defacto standard on classic Macintosh computers.

MR Browser is a small utility app allowing very old Macs from the 90's that are too old to use a normal web browser, but are new enough to connect to the internet through TCP/IP, to access Macintosh Repository online services, e.g. to directly...

Classilla is literally the best and most up to date web browser that can be used on Mac OS 8.6 or 9.x.  Classilla is also open source and thus, free.  It was derived from Mozilla Internet Suite, which emerged itself from Netscape...

Hotline Connect was, for a short period of time in history, the most sought after BBS-like client/server software suite.  A client could connect to a server using its IP address (or a dynamic hostname if the server owner had one) over TCP/IP...

Good old ClarisWorks. Better in one significant way than MS-Office: there is a 'drawing' style document which is effectively a page layout tool similar to MS-Publisher, but actually usable. Perfectly serviceable office suite including...

TenFiveTube is a standalone browser and player for using Youtube on PowerPC based Macs running OS X 10.5 Leopard. You can follow the development of TenFiveTube on this Macrumors thread:...