I will take a wild attempt:
If you know a good site, that means you personally know it.
If you know of a good site, that means you may not personally know it, but you have heard it is good.
...
Type: Posts; User: kalinka_vinnie; Keyword(s):
I will take a wild attempt:
If you know a good site, that means you personally know it.
If you know of a good site, that means you may not personally know it, but you have heard it is good.
...
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