Need an unique Application for 8051 mcu project ? - mail by J9
Look at this place
8052.com - The Online 8052 Resource - This web site is dedicated exclusively to the 8052 microcontroller, related products (both hardware and software), and 8052 derivative chips. This includes the traditional 8052, 8051, 8032, and 8031....
The best place is PJRC: 8051 Projects - This 8051 development board provides an easy and low-cost way to develop projects based on the 8051 microcontroller, without the need to purchase any other equipment, such as EPROM programmers or emulators.
8051SBC V1.0 - The old day chips, say 8031, 8751, 8032 or the new chips,89C51, 89C52, 89C51RD2 can be used without any problem. Some may think that your old chips were useless, now you can use it for many projects.
This is an answer of mine to an old post - 2006