1、emd
http://www.embed-soft.com/
http://www.opendevices.net/
http://www.embed.com.cn/ (嵌入開發網)
http://www.cnemb.com/index.php (嵌入式研究網)
2、avc
http://www.ptsn.net.cn/ (通信標準與質量信息網)
3、self
http://www.chinaitlab.com/www/index.asp (中國IT認證實驗室)
http://www.itpub.net/index.php
http://www.microsoft.com/china/technet/abouttn/subscriptions/realstory/default.mspx (MS真實故事分享活動)
4、linux iso download
http://freesoft.online.sh.cn/mirrors/redhat/9/shrike-i386-disc1.iso
http://freesoft.online.sh.cn/mirrors/redhat/9/shrike-i386-disc2.iso
http://freesoft.online.sh.cn/mirrors/redhat/9/shrike-i386-disc3.iso
http://freesoft.online.sh.cn/mirrors/redhat/Fedora/2/FC2-i386-disc1.iso
http://freesoft.online.sh.cn/mirrors/redhat/Fedora/2/FC2-i386-disc2.iso
http://freesoft.online.sh.cn/mirrors/redhat/Fedora/2/FC2-i386-disc3.iso
http://freesoft.online.sh.cn/mirrors/redhat/Fedora/2/FC2-i386-disc4.iso
http://freesoft.online.sh.cn/mirrors/redhat/Fedora/2/FC2-i386-rescuecd.iso