I want to share my Internet connection with my neighbors and control the speed I share with them. Is it possible? Please elaborate.
There is software out there that can be used for this purpose, the same type of software a lot of internet cafe's use to keep certain groups from over-utilizing a connection - most of these cost money. If your router can support it, you can also use QoS to specify certain IP ranges are throttled (you would set all your computers up in static outside the range and then DHCP the range you want QoS on so anything else that connects follows the bandwidth rules you specify).