Pros' Guide to Prose - Take a Guess...
 

• AFFECT vs. EFFECT
• ALL RIGHT vs ALRIGHT
• A LOT   not ALOT
• ALTERNATELY vs. ALTERNATIVELY
• BETWEEN YOU AN ME not BETWEEN ME AND I
• CONTINUOUS vs. CONTINUAL
• CREDIBLE vs. CREDITABLE
• DANGLING MODIFIER...
• DISPERSE vs. DISBURSE
• EACH OTHER vs. ONE ANOTHER
• FARTHER vs. FURTHER
• FEWER vs. LESS
• IMPLY vs. INFER
• IRREGARDLESS vs. REGARDLESS
• IT'S vs. ITS
• IT vs. THEY
• LIE vs. LAY
• PARALLELISM...
• PERIOD, COMMA, SEMICOLON, EXCLAMATION, QUESTION MARK and QUOTATION MARK
• THAT vs. WHICH
• THAT vs. WHO
• THIS, THAT, THESE, THOSE + noun
• TOWARD vs. TOWARDS

The 10 Rules of Writing
 

1.    Think
2.    Say it simply
3.    Avoid vagueness, abstraction, and jargon, the triple play of bad writing
4.    Use the active voice
5.    Cast your language in positive terms
6.    Avoid multisyllabic words when short ones will do
7.    Omit unnecessary words
8.    Get to know and love the period
9.    Check your spelling
10.    Reread what you've written

Reading on Writing
 

The Elements of Style, by William Strunk, Jr., and E.B. White (Allyn & Bacon, 1999)

Fowler's Modern English Usage: Second Edition, by Henry Fowler (Oxford University Press, 1983)

Garbl's On-Line Writing Experts

On Writing Well, by William Zinsser (Harper Reference, 1998)

Words Fail Me: What Everyone Who Writes Should Know About Writing, by Patricia T. O'Conner (Hardcourt Brace, 1999)