Common Spelling and Grammatical Errors on the Internet

The following is simply a collection of the most obvious and common language errors I have noticed lately on the internet. Their appearance here indicates a consistent pattern and not just random typing errors ("typos") or unfamiliarity with the language (foreign and new speakers).

Type	Penetration	Incorrect Form	Correct Form	Explanation	Mnemonic*

Spelling	Common	definately	definitely		Finite not Finate
Spelling	Common	your (for "you are")	you're		Two words are run together: you are becomes you're
Spelling	Common	its (for "it is")	it's		Two words are run together: it is becomes it's
Spelling	Common	it's (that which belongs to it)	its		Same as other possessive pronouns: his, hers, ours, theirs
Spelling	Common	to (more than needed, or "also")	too		o+o
Spelling	Occasional	now (to have knowledge of)	know		You don't always know it now
Spelling	Occasional	seperate	separate		The e's are separated by a's: e-a-a-e

Grammatical	Pandemic	There's ("there is") apples† somewhere	There are apples somewhere		Rearrange: Does "Apples is there" really sound right to you?
Grammatical	Common	... was the former ...	... is the former ...	Unless you are talking about a time prior to the time in the past when the condition existed, the state of being "former" exists now, not then	If they were something, they couldn't have been the former something, unless they did it twice