* According to the Gunning Fog Index; Flesch-Kincaid puts me at a 7th grade reading level. Though apparently, my "Flesch Reading Ease" score of 62.40 means that my writing is very readable:

Flesch Reading Ease
The result is an index number that rates the text on a 100-point scale. The higher the score, the easier it is to understand the document. Authors are encouraged to aim for a score of approximately 60 to 70.

Yippee, I'm getting through. Full results:

Summary Value
Total sentences 436
Total words 5,048
Average words per Sentence 11.58
Words with 1 Syllable 3,229
Words with 2 Syllables 1,075
Words with 3 Syllables 438
Words with 4 or more Syllables 306
Percentage of word with three or more syllables 14.74%
Average Syllables per Word 1.57
Gunning Fog Index 10.53
Flesch Reading Ease 62.40
Flesch-Kincaid Grade 7.43

Typical Fog Index Scores - Interpreting the Results
Fog Index Resources
6 TV guides, The Bible, Mark Twain
8 Reader's Digest
8 - 10 Most popular novels
10 Time, Newsweek
11 Wall Street Journal
14 The Times, The Guardian
15 - 20 Academic papers
Over 20 Only government sites can get away with this, because you can't ignore them.
Over 30 The government is covering something up

(Thanks to TMarcell)