Printing

afpSoft
Programs generating for example AFP printer resources (overlays, page segments, pagedefs) or proof-printing AFP output under Windows need the AFP fonts in outline format to get real WYSIWYG quality. AFP Font Converter converts an AFP font into Adobe's Type1 format.
http://www.afpsoft.de/

apsfilter
flexible print filter
http://www.freebsd.org/~andreas/#apsfilter

Brooks Internet Software - Global Printing Solutions
A PC-based TCP/IP print server (LPD) for Windows NT platforms that enables users to effortlessly receive customized print jobs from an AS/400, mainframe, or Unix system. RPM offers localized network printing control and flexibility including custom formatting options (cpl, cpi, pcl, scs, EBCDIC, queue) for forms printing, and label printing.
http://lpd.brooksnet.com/

COSprint
A print spooler and output management package for Unix and Windows, certified for use with SAP R/3.
http://www.cosprint.com/

HP Web JetAdmin
Web-based solution for remotely installing, monitoring, and troubleshooting network-connected peripherals. The software's Web browser interface simplifies management of a wide range of devices, including HP and non-HP printers.
http://h10010.www1.hp.com/wwpc/pscmisc/vac/us/en/en/network_software/wja_overview.html

LPRng
Print Spooler
http://www.astart.com/lprng.html

Network Printing Solutions for Windows platforms
Business-oriented software products bridge the network-printing gap between AS/400, Unix, mainframes and Windows printers offering network and remote/home office users control normally lost with TCP/IP printing.
http://www.brooksnet.com

NIPrint
A bi-directional 32-bit LPD/LPR print services for Winsock.
http://www.netinst.com/products/niprint.html

Printer Working Group
an unincorporated alliance among printer manufacturers, print server developers, operating system providers and print management application developers chartered to make printers and the applications and operating systems supporting them work together better.
http://www.pwg.org/

SAMBA
SMB print service
http://samba.anu.edu.au/samba/samba.html

TROY XCD, Inc.
Network and Internet Connectivity including Print Servers, Serial to LAN, and Internet Printing.
http://www.troyxcd.com