This post is from a series of weekly posts highlighting a handful of interesting links I bookmarked in the past 7 days. For the full archives (only two weeks so far) visit the SEO Sunday category page.

• Tracking the KPIs of Social Media
  You rarely see a poor post by @randfish over on SEOmoz and this one is no different. If you’re from the agency world then you’ve no doubt had a conversation with a client who is scared of dabbling in social because “there’s no way to track it”. Rand covers some great advice on how to get a bit more insight into the impact of being friendly.
• Using Google Docs To Generate Hot Content Strategies [Tool]
  Very nice tool from ex-HP SEO @DBSEO that takes a little bit of pain out of the process of content strategy research. This triggered a few extra ideas in my head too, which is always nice.
• Google+ Developer Platform
  Awesome! it’s finally here – the Google+ developer API! oh… no, hold up… let me step back a second here. It turns out it’s pretty much a one-way API right now, so essentially just a data export tool. Looks like all of those spam bots will have to be put back on hold for the time being.
• A Guide to Long Tail Link Building
  Yet another great post by the famous @rishil this time tackling how to create sub-sets of your head terms and create those all important long-tail anchor text variations. A seemingly simple guide but one I’m sure many SEOs don’t action often enough.
• Quora: Kevin Lacker’s Answers about Web Search
  I think it was Rand Fishkin that tweeted this out originally but I’m too lazy to go and check. Anyway – this guy “wrote search algorithms at Google” so he knows his shit. There’s some really interesting answers that any hardcore SEO will enjoy reading.
• Introducing Twitter Web Analytics
  About freakin’ time. Twitter finally launch an official analytics tool. Well, I say launch but it’s still closed to a selected beta group for now. Hopefully it will roll-out more widely pretty soon.
• Blekko Web Grep
  Blekko certainly get the kudos for empowering the modern SEO with decent tools. This one does exactly what it says on the tin – allows you to essentially grep the web using strings or patterns. This could be awesome for certain niche research tasks.