Welcome to the Q&A Forum

tags are not that big of a ranking factor, if at all. They are important only insofar that they help Google determine what a page is about, which tags should do as well. If you really want to see if they make a difference, try having your page with tags one month, then without the next, and see if rankings change. Then write a blog post about it on YouMoz for a nice backlink.

My opinion would be that DIV-based markup is the better choice here.  As you said yourself, it's not really tabular data, so in using DIVs you can use semantic markup which is a positive for SEO. You could improve/cleanup the markup of that data though, by: Use , , tags.  Even the bolded text in the lefthand column are basically headers for the text in the righthand column. You should remove the empty class="hr">tags, which I assume are in there to create the horizontal lines.  It's nit picky, as if you remove them, you'll need to add a 'wrapper DIV' surrounding each row, so you won't really be cutting down on the code used that much.  But having empty tags that are only there for presentation purposes is generally frowned upon.  You could create the same visual effect by using a border or by using a background image (if you want the line to not fully extend across the row). That's all pretty nitpicky coding stuff though.  For SEO purposes, I think the only thing that might have an affect is using the <hx>tags.</hx>

Well the social buttons will still keep the link count from the old url (which you set manually when creating the button) and when a user clicks on the link that was shared, they'd be 301ed to the new page. I don't think there is a way to transfer likes to a new url but this is the cleanest workaround (looks and feels like the social buttons are related to the page they are on but actually reference the old url which redirects to the new one) Hopefully that's clear haha

Hi Olivier, Here's FaceBook API policy : If you exceed, or plan to exceed, any of the following thresholds please contact us as you may be subject to additional terms: >100M API calls per day. Source : http://developers.facebook.com/policy/ So, are you planing to have over 100M API calls per day? Best regards, Guillaume Voyer.

Interesting point! However, we are creating a mobile site in html5 to serve smartphones only. On a seperate domain, m.example.com. From what I have read Google treats smartphones as desktops due to thier advanced web browser capabilities. So no need to bother with googlebot.mobile right? Googlebot should index the site once I create a normal sitemap.xml. My concern is that the mobile site pulls the same content as the main site which is already indexed. Would this create duplicate content? If so, what can I do?

In theory that's possible, but it's a bit of a stretch to call it a "correlation". It's like spending $100,000 advertising on the side of every bus in your city. Chances are you'll get coverage and some of that coverage will be a link, but it's not to say that there's any causal relationship between advertising on buses and improving the rank of your website.