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Hi all, At the moment we are at the verge of building finally a blog. For SEO purpose I demanded that it would include social interactions with Google+, Facebook, Twitter, Youtube and some more. Especially Google+ for the authorship part. But now they come asking me if they can work with Gravatar http://www.gravatar.com/support/what-is-gravatar/ - a Globally Recognized Avatar. I never worked with it before and can't find anything if it will negatively impact SEO on authorship - but I'm still not sure. Does the Gravatar interfer with Google+ authorship?
I could find information about having to setup the author part in the Gravatar, but this doesn't give me the answer if this helps with Google+. If anybody has experience of can tell me / point me in the right direction it much appreciated. Or maybe having a better solutions than the Gravatar.

Struggle with the following impact on SEO if starting to share mobile website URL. We have multiple PC urls (5 different domains).For example www.site1.com, www.site2.com, www.site3.com, www.site4.com and www.site5.com. Now I have to convince other people within the company not to use one mobile website url for all different domains. The intention is to direct all mobile traffic from site1, site2, site3, site4 and site5 to the url: m.site4.com. Based on the following articles I already wanted to combine the www.site4.com with the m.site4.com to one entity, based on the third method which is supported by Google.                   https://developers.google.com/webmasters/smartphone-sites/details and http://googlewebmastercentral.blogspot.com.au/2013/06/changes-in-rankings-of-smartphone_11.html But now I have to give SEO impact feedback on the other domains.                                                       The obvious one is site1, site2, site3 and site5 will not have positive mobile SERP indexation.         Second impact: Duplicated content issues across multiple websites.
Third impact:users from site1, site2, site3 and site5 will see the change in URL, could give a negative user experience.
Fourth impact: text on site1 / site2 / site3 / site5 is not the same as on site 4 this will implement maybe hidden content issues, which could cause penalties. Do I miss other negative SEO impact, I have been searching a lot of the articles /  blogs, Q&A but can't really find sufficient information about this particular subject. Any feedback or links to articles / blogs / Q&A are highly appreciated.

Hi guys, I'm working on the website to improve the internal linking structure. We have thousand of pages, and on every single page we have the same footer with the same links. For this reason I would like to change the footer in only relevant links for the user, but also for the robots. So for the user I leave in the general main links Home / Contact / Promotions and customise a part of the links to specific links about the section they are looking at. Now my idea was to add to the General Main links a Nofollow, so I direct the robots in a better structure about how to read the website. I have been reading a lot about internal linkbuilding- like http://www.seomoz.org/blog/smarter-internal-linking-whiteboard-friday  and http://www.seomoz.org/learn-seo/internal-link http://www.searchenginejournal.com/information-architecture-rocket-science-simplified/22503/ and a lot more, too much to display all. but my question would be, is it smart to internally start using NOFOLLOW's on links. because I do found also some negative comments on this approach http://www.dashboardjunkie.com/noindex-nofollow-canonical-and-disallow I hope to get some feedback from the community to make up my mind.

In my SeoMoz crawl report I get multiple 4XX errors reported and they are all on the same type of links. www.zylom.com/nl/help/contact/9/  and differiate between the number at the end and the language. But I i look in the source code we nice said: <a class="<a class="attribute-value">bigbuttonblue</a>" style="<a class="attribute-value">float:right; margin-left:10px;</a>" href="[/nl/help/contact/9/?sid=9&amp;e=login](view-source:http://www.zylom.com/nl/help/contact/9/?sid=9&e=login)" onfocus="<a class="attribute-value">blur()</a>" title="<a class="attribute-value">contact</a>"> contact a> I already tested the little helpfull tool Xenu, but this also doesn't give any broken links for the url's which I found in the 4xx error report. Could somebody give me a suggestion Why these 4xx errors keep coming? Could it be that the SeoMoz crawlers break the part ?sid=9&e=login' from the URL. Because if you want to enter the link, you first get a pop-up to fill in a login screen. Thanks for you answers already

Dear all, Every week I look at the different crawl reports for our website, since the start of my SeoMoz membership the Errors for duplicated content and duplicated Title is rising. But if I take out the .csv file and look in more detail, and select a pages which is marked as duplicated content, a canonical is actually existing on this page. So it shouldn't be an warning, I have no idea what the issue could be. For example pagesare marked as duplicated content, <colgroup><col width="966"></colgroup>
| http://www.zylom.com/es/descargar-juegos/3-en-raya/?sortby=2 |
| http://www.zylom.com/es/descargar-juegos/3-en-raya/?startnumber=60&sortby=2 |
| http://www.zylom.com/es/descargar-juegos/3-en-raya/?startnumber=80&sortby=2 | the parameters after '?' (question mark) are necessary for our internal system. To overcome duplicated content we coded that a canonical tag onis placed on every page with parameters and the main page is http://www.zylom.com/es/descargar-juegos/3-en-raya/ but it doesn't seem to work, because my error warnings are still rising. Please advice me Kind regards, Ms Letty van Eembergen