Google plus provides dofollow or nofollow backlinks?

[csfarnsworth]

I see my webmaster full of backlinks coming from sites like

Google.com(plus)

Twitter.com(tweets)

Stumbleupon

chime

Scoop.it

1.Are these backlinks follow or nofollow?

2.Follow or nofollow backlinks surely do not pass PR effect but do the nofollow backlink helpful in rank or not?

[Stramark]

Your Google+ profile (about section) does give you the option of adding links to your bio. As far as i can see them, they are dofollow.

example:

https://plus.google.com/114163207395031733621/about

[G2W]

You mention building your author profile and it certainly makes me wonder how important it is to have a fully fleshed out profile backing up pages on Facebook, Google +, etc?

I ask because typically what I have been doing is creating a proxy account that is not even visible to the public just to put up my business pages.

Am I going about this the wrong way?

[SEOAndy]

Usually, you will find social media sites (of any type) will give no-follow links. So they don't (in theory) pass link juice - however, they are still helpful for ranking, getting visitors and even getting your site indexed.

The prime example of this is G+, through making sure it's not posted to other social media sites or to a sitemap, it is possible to see that when you make a post on Google+ to a new page or blog within a few hours it get's indexed / a robot visits - this is even faster if people comment about the post and share it. At least in my experience.

As SamCUK says though, build your author profile and show you are a real person with great content and the rest will follow. Great content and good use of social media will mean you will naturally build both follow and no-follow links (as of course does deliberate link building)

[SamCUK]

As I understand it Google + post links are now no follow. The rest listed are too. Remember though that you need a range of do follow and no follow links for a natural backlink profile. The best thing you can do with your google plus profile is set up google authorship. A strong trust signal for google.

[SVmedia]

Yea, those types of links are usually no-follow.  As far as no-follow links being helpful for rankings - that's something that's been debated thoroughly and it's hard to say.  Like you said, they don't pass much juice, but can possibly be seen as a relevance signal.

I would also expect links from sites related to your niche to be of more value than social profile links.