A Good Jumping-Off Point for Technique

[beetle]

This site has saved my ass more times than I can count in academia. It's also helpful for developing overall good techniques/habits:

OWL

This site might also be helpful just to categorize/figure out what's what:

Letterpile

And you can't go wrong with a good dictionary:

M-W.com


And a good place to get your feet wet with ANY kind of writing:

Writing.com

Happy writing!