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Do we only use inverted commas to quote?
What do you mean precisely by an 'inverted comma'? If you mean the marks that I have placed around 'inverted comma', then those serve as informal quotation marks, as quotation marks within quotation marks, and as apostrophes.
Do we italicize blog names and website names?
Do blogs or websites have definitive names? How does one identify the correct name? I suppose I would use italics if I were typing.