welcome wikipedia hello welcome wikipedia wikipedia one world fastest growing internet sites aim build biggest comprehensive encyclopaedia world date four million articles host languages english language wikipedia alone one million articles still need please feel free contribute knowledge expertise site need help see help contents main help page cheatsheet listing main editing commands good links newcomers five pillars wikipedia edit page tutorial write great article manual style hope enjoy editing wikipedian please sign name talk pages using three tildes four want date stamp automatically produce name date need help check wikipedia questions ask talk page place helpme talk page someone show shortly answer questions welcome