Purdue Online Writing Lab: An excellent resource for help with writing with various stylesheets for academic Follow this link to get there

Penn State University APA citation guide: And here is one from Penn State 

Citation managers

Zotero: A rather marvelous site (that's free to a point) to manage citations. Works with browsers online, especially when one is using Firefox ; and it has a plug-in for Microsoft Word that makes life as an academic writer much more convenient. Learn more here

Mind your language & its style

Mechanics of Writing: Here's an online resource that offer pointers in the mechanics of style, in writing and points to other good sites, including the OWL Purdue site as well.

In addition, here is a tutorial on avoiding accidental plagiarism