Double space all text in 12 pt. Times New Roman, Garamond, or a similarly readable font; watch this video for help with double spacing
To change the font and spacing of all text in a Google Doc:
Ctrl-A to select all text in your document
Select Times New Roman or another appropriate font from the drop down menu
Select 2.0 from the menu with the arrow pointing up and down
To create a running header in the top right corner of a Google Doc: Last Name Page Number (Smith 1)
Use the Insert/Header and Insert/Page Number menu functions
Don't forget to make your heading the same font and size as your body text
Indent the first line of every paragraph one-half inch; here's what the symbols on the ruler at the top of your Google Doc mean; get comfortable dragging them around for individual paragraphs and also for large blocks of text that you select; the more you play with this, the faster you'll become a Google format expert!
When you quote or paraphrase or use information from a particular source, you must cite the source in both your text and in your works cited section. One or the other is not enough. Mere URLs are not enough. Use correctly formatted MLA citations as described in the resources below. This is the essence of scholarship. Your work depends on the work of many who have gone before you. Never forget to cite in both your text and in your works cited section!
Purdue Online Writing Lab (OWL)
Update: Use ProQuest's "Cite" button to create works cited entries for all sources
Excellent University of New Hampshire summary--see page 6 re in-text citations
Automated MLA tools
A TurnItIn.com report for the template above; note the comments on the Grademark marks on p. 6
Norton
Samples
Formatting
Sample Academic Papers