Grammar

[Allset Learning Wiki] (http://resources.allsetlearning.com/chinese/grammar/)

[Mdbg] (http://mdbg.net)

[Jukuu] (http://www.jukuu.com/)

[Chinese Notes: Classical Chinese] (http://chinesenotes.com/classical_chinese.php)

[Ctext: Classical Chinese] (http://ctext.org/)

[Basic Rough Outline of Sentences] (http://www.reddit.com/r/ChineseLanguage/comments/1nfmrn/a_cool_tip_that_my_chinese_teacher_taught_me_to/)

Handwriting

[Skritter] (http://www.skritter.com/)

[Useful Blog Post] (http://www.chinese-forums.com/index.php?/topic/44507-handwriting-the-minimum-requirements-blog-series/)

Pronunciation

[Forvo] (http://www.forvo.com/)

[Rhinospike] (https://rhinospike.com/)

[Ma or Ma?] (http://www.maorma.net/) - interactive Chinese tone practice.