A selection of materials for learning 普通话 online, i.e. Modern Standard Chinese.

• Forvo Chinese – 汉语发音词典
• Dictionnaire chinois français / 汉法词典 — Chine Informations
• Linguee Chinese – find real usage of whole phrases in Chinese documents and websites, translated to multiple languages
• MDBG English to Chinese dictionary
• Pleco Software – multi-platform Chinese dictionaries (Android, iOS)

• ABCs of Chinese – the radical way to learn Chinese characters through smaller building blocks
• About.com Mandarin – learn all about the Mandarin Chinese Language
• BBC Chinese Course – learn Chinese with free online lessons
• Chineasy – a new and easy way to learn reading Chinese through building blocks
• ChinesePod – a high-quality podcast for learning Mandarin Chinese (paid)
• LearnYu – learn Chinese with an intelligent digital assistant inspired by Khan Academy and Duolingo
• Skritter – multi-platform application for learning how to write Chinese and Japanese characters (Android, iOS)
• Wikibooks Chinese (Mandarin) – a free textbook on Standard Mandarin (both traditional and simplified characters)
• Yabla Chinese – an authentic way to learn Chinese via video immersion
• Yoyo Chinese – learn Chinese through online video lessons

• YouTube: Китайский за 16 часов – уроки китайского языка с Петровым с нуля для начинающих бесплатно

• Hacking Chinese – a better way of learning Mandarin Chinese (Olle Linge)
• How Can I Apply The AJATT Method to Getting Used To Mandarin Chinese? – by all Japanese all the time (AJATT)
• Chinese Vocabulary Page – vocabulary lists for various textbooks (Paul Denisowski)
• MandarinMadeEZ – learn Mandarin Chinese (Fiona Tian)
• Sinosplice – the longest-running blog on the internet focused on learning Mandarin Chinese (John Pasden)

• Ba Ba Dum: 普通话 – play and learn Chinese words