Social Networking Account Creation Best Practices

Hi,
I was wondering about social networks multiple account creation.
Here is what I'm wondering about.

1- I have about 30 Wordpress sites all of which are Amazon product reviews.
2- I recently bought a plugin called SNAP "Social Networks Auto-Poster". It is also known as "NextScripts".
It basically auto posts your site posts to the social networks on auto pilot.
3- This plugin does not create social networks accounts for you. So you basically need to create these accounts yourself manually.

So here is my question. Which of the following is a better practice:

1- Create a separate account in each social network for each of my sites.
2- Create just one social network account for all of my sites.

Also, is there a software and/or plugin that will automate the social networks account creation?

Would really appreciate any feedback.
Thanks.

For some reasons, snap is not working for me..
I use revive plugin to promote my posts on Twitter. Every 4 hrs...
I think one account on each profile is ok. As you are sharing different posts, there would be any issues.

(Newbie)
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