[NOTE: J/Link version coming soon...] Contains a mathlink program to enable Mathematica to read and write to arbitrary TCP/IP sockets. An example program is included that just spits out the raw html from an arbitrary web page. Edit the Makefile and type make all to build. If you've linked here from the Mathematica Developers Conference page, you may also be interested in MASH (Mathematica Scripting Hack), link above.