Would posting content into these sites be a good boost related to authority?

[mtthompsons]

Hi,

Would posting content into these sites be a good boost related to authority?

Press releases

PRWebPRLeapArticlesthetechscoop.netthecampussocialite.comtechi.combusiness2community.commediaite.comexaminer.commakezine.comhuffingtonpost.comAll these site charge to post is it worth?Thanks

[artdivision]

I can partially answer your question and safely say that business2community do not accept anchor text links anymore and huffington post need proper journalist application before you contribute content. Not sure about the rest but I suspect it is going to be the same as they have a very high PR and obviously will not allow just random guest blogging.

Not sure about PR, maybe someone else can advise.