"nw" and "lena" (Lena is a name of many irc chat-bots). It is a IRC bots that gathers some statistical data and posts it to special web-site using HTTP.
Learning protected mode of Intel's 386 CPU. A set of programs written in assembler. 512-byte MBR starts from FAT12 floppy disk, can find a file named "core", load and start it. The core can switch CPU to p-mode and run several tasks.
Ustup's Content Management System - CMS implemented in PHP. No DBMS required - custom file-based storage is used.