How to Communicate with ESP8266 via Arduino UNO - Arduino Project Hub
Connect to Blynk using ESP8266 as Arduino Uno wifi shield - Hackster.io
WAVGAT UNO R3 + WiFi ATmega328P+ESP8266 (32Mb memory) USB TTL CH340G For Arduino Uno NodeMCU WeMos ESP8266 One New Arrival|Integrated Circuits| - AliExpress
Virtuino – ESP-01 + Arduino UNO getting started tutorial ( ESP8266 ESP01 WiFi module) – Learning LED – LED Videos and Tutorials – Learn To Use LED's
Installing ESP8266 in Arduino IDE (Windows, Mac OS X, Linux) | Random Nerd Tutorials
Arduino : Connecting Arduino UNO with ESP8266 - iCircuit