Quite an impressive and helpful website which aided me in learning grammar, punctuation rules as well as revising general rules and formations.
I've learnt about common mistakes such as run-on error and surely would avoid doing it again.
Things I've learnt includes:
-merging sentences with a semi-colon
-Appropriate usage of commas
-Common spelling mistakes and their corrections
Hope that I'll be able to rectify my errors and compose my writings accordingly.