About web host deployment, web hosting resources
###Application Engines
- Openshift
- support python, mongodb, etc.
- has free service
- can use DIY cartridge!! (already got virtualenv, pip, python, can use ssh to login)
- GAE
- don't support mongodb
- free
###VPS
- AWS
- has free tier for 1 year, need credit card to register
- can use tencent's "财付通" to apply an American Express card, currently stopped.
- VPS.me
- no IPv4, only a IPv6
- has free service
- Host1free
- apply with an e-mail address, need to wait for one week after registration
- Azure
- free for 3 months
- aliyun
- free for 4 days, at least 55yun/month after that