https://www.google.com/contributor/welcome/
Google now offer an alternative to ads for content sites. Allow you users to opt-out of ads and pay you directly for the content. Similar to services like Patreon, but integrated directly into Google (and AdSense/AdWords).
http://rachelandrew.github.io/eu-vat
http://rachelandrew.github.io/eu-vat/implementation.html
http://rachelandrew.github.io/eu-vat/links.html
http://www.twobirds.com/~/media/PDFs/Books/Bird%20%20Bird%20%20Pocket%20guide%20to%20VAT%20on%20digital%20ecommerce.pdf
EU VAT Policy is changing and it has some huge ramifications if you sell (or may sell) digital products to customers in the EU. Lots of reading to do at the links above.
Lots of guides provided by Google over the festive period on the Adwords and Analytics blogs.
http://adwords.blogspot.co.uk/2014/11/your-guides-to-growing-profits-from.html
http://analytics.blogspot.co.uk/2014/11/measure-what-matters-most-marketers.html
http://adwords.blogspot.co.uk/2014/11/show-promotions-on-your-product-listing.html
You can now show ‘promotions’ (voucher codes, offers etc) in your product listing Google ad's.
http://www.theverge.com/2014/11/6/7163789/microsoft-office-free-for-ipad-iphone-android
Microsoft Office free on iOS devices.
http://www.theverge.com/2014/11/19/7250513/firefox-signs-yahoo-as-default-search-engine-
Firefox drops Google as default search engine. I have a feeling this may hurt Firefox more than it hurts Google, although it is something to be aware of.
http://googlewebmastercentral.blogspot.co.uk/2014/11/helping-users-find-mobile-friendly-pages.html
This is the third or fourth step that Google have outlined about this recently. They are hammering the point home.
http://www.google.com/trends/explore#q=black+friday&geo=GB
Black Friday is bigger than ever in the UK, make sure you're ready with your deals for customers looking to buy!
https://twitter.com/ecomchat
Every monday, for one hour. Some good advice and thoughts from people on the slightly more technical side of the SEO/eCommerce industry.
http://searchengineland.com/google-keyword-planner-now-shows-conversion-estimates-209395
Keyword planner becoming even more useful for those that have good data.
http://www.macstories.net/ios/twitter-adds-ability-to-share-tweets-via-direct-message/
http://www.macstories.net/ios/you-can-now-search-for-every-tweet-ever-sent-in-the-twitter-app/
Potentially useful for all you vociferous tweeters. Competitor reviews with the searches is especially useful.
http://www.imore.com/what-you-need-know-about-watchkit
If your clients have apps, they may be interested in putting them on their wrist.
http://searchengineland.com/googles-knowledge-graph-finally-shows-social-networks-named-google-209171
This is currently just for people, not businesses, but always nice to see they're working on this.
http://searchengineland.com/google-axes-carousel-new-local-3-pack-208710
A reminder to keep an eye on the search results page for clients in different sectors.
https://www.google.com/webmasters/tools/mobile-usability
http://searchengineland.com/mobile-usability-reports-come-google-webmaster-tools-206885
Yet more hints from Google how seriously they take mobile.
https://nakedsecurity.sophos.com/2014/11/24/wordpress-issues-critical-fixes-closing-remotable-bug-and-more/
Update Wordpress. Seriously.