I have a Kindle Keyboard and a Paperwhite, they both have WiFi and mini USB. Is there anyway to connect with a TV or computer monitor so I can get a larger screen size, while reading with my Kindle?
Although you cannot stream from any Kindle directly (except for the Kindle Fire HD), you can download any of your Kindle books to a PC or laptop and read them using the PC Kindle App, and you would be able to stream that.
No, unless you completely replace the software on the device. The mini-USB is not capable of connecting to external devices. The software included by Amazon doesn't allow you to remote the screen over WiFi to another device.