WhatFont - The easiest way to identify fonts on web pages
Google Fonts - Making the web more beautiful, fast, and open through great typography
Font Flame - Tinder for font pairing
Typewolf - Typewolf helps designers choose the perfect font combination for their next design project—features web fonts in the wild, font recommendations and learning resources.
Pair Compare - Pair & Compare is a web application that lets you try, pair, and compare different fonts easily and quickly. Pair & Compare allows you to use hundreds of Google Fonts, or one of the fonts installed on your device.
Font Generator - Tons of font ideas in one click