Brief 2: Merriam Webster's list of frequently misspelled words

This is a list taken from the Merriam Webster's site Spell It, which is a tool used by spelling bee competitors to assist in their training.
This is their list of words that are most commonly misspelled.

Frequently misspelled words:

1. across
2. address
3. again
4. agreeable
5. allot
6. already
7. answer
8. apparent
9. appearance
10. athlete
11. balloon
12. believable
13. bureau
14. business
15. college
16. commitment
17. concede
18. conscientious
19. cousin
20. debt
21. definite
22. different
23. does (v.)
24. eligible
25. embarrass
26. exceed
27. exhilarate
28. familiar
29. February
30. foreign
31. forty
32. grammar
33. half
34. independence
35. interesting
36. its
37. knowledge
38. laboratory
39. laugh
40. league
41. maintenance
42. minute
43. misspell
44. noticeable
45. occurrence
46. often
47. parallel
48. pastime
49. possess
50. privilege
51. probably
52. ready
53. receipt
54. recommend
55. said
56. satellite
57. schedule
58. secretary
59. separate
60. sheriff
61. sincerely
62. succeed
63. sure
64. trouble
65. truly
66. usually
67. vacuum
68. vegetable
69. villain
70. visible
71. Wednesday
72. weird
73. whose

Homonyms often misused:

1. accept - except
2. aisle - isle
3. bare - bear
4. born - borne
5. capital - capitol
6. cash - cache
7. ceiling - sealing
8. cellar - seller
9. censor - censer - senser -sensor
10. cereal - serial
11. coarse - course
12. colonel - kernel
13. complement - compliment
14. council - counsel
15. elicit - illicit
16. forth - fourth
17. herd - heard
18. hole - whole
19. horse - hoarse
20. lean - lien
21. led - lead (n.)
22. naval - navel
23. ought - aught
24. principal - principle
25. recede - reseed
26. right - rite
27. sight - site - cite
28. stationary - stationery
29. straight - strait
30. their - there
31. ware - wear - where
32. weather - whether
33. wright - write - rote - wrote
34. yore - your

Commonly confused words:

1. advice - advise
2. allusion - illusion
3. amoral - immoral
4. affect (v.) - effect (n.)
5. averse - adverse
6. biannual - biennial
7. breath - breathe
8. choose - chose
9. climactic - climatic
10. collaborate - corroborate
11. conscience - conscious
12. convince - persuade
13. desert - dessert
14. device - devise
15. emigrate - immigrate
16. flaunt - flout
17. founder - flounder
18. gambit - gamut
19. imply - infer
20. irritate - aggravate
21. later - latter
22. liable - libel
23. loose - lose
24. marital - martial
25. moot - mute
26. nauseated - nauseous
27. perspective - prospective
28. proceed - precede
29. proscribe - prescribe
30. quiet - quite
31. recall - recount
32. tenant - tenet
33. than - then

http://www.myspellit.com/need2know.html