Another online spell-checker

Problem: English is a hard language, full of homonyms, odd grammar rules, and spelling that is one step above random. When I was a child, I constantly misspelled “their” as “thier”. Even now, spelling and grammar mistakes creep into everything I type.

Solution: A new spelling checker. I learned, quite by accident, that retyping a word helps me to remember its spelling far more than just hitting the ‘correct this’ button on the spell-checker. Also, some words are more likely for me to misspell. I would like an online spell checker with these features:

• Have me retype misspelled words, instead of just hitting “OK”.
• Show me a few words of definition for words as I hover over them, along with alternate words.
• Highlight words that are often misused, such as “their, they’re, there” or “affect, effect”. Vary the color of the highlighting based on my proficiency in the past.
• Provide the basic grammar checking and complexity guidelines from the 1980s program Grammatik.
• Provide some support of english as it evolves, such as checking with Google to see if “Grammatik” has many hits, or comparing “computer aided” to “computer-aided”.
• Show me my most misused words on demand.

In writing this short paragraph, I misspelled “grammar” three times, and “misspell” once.