This week the round up is one item shorter than usual. Since Twitter related articles stood out most for some reason, I wanted to keep it all about Twitter this time.

Lately the main buzz online is about holiday sales. With Black Friday and Cyber Monday behind us, good news about strong sales are floating on the web. This year retailers have utilized social media more effectively to drive both their online and offline sales. Our round up this week includes articles including these topics.

Now we are officially in the online holiday shopping season. I wish all the online retailers the best of luck and the best profits. This time we have a selection of e-commerce and online marketing articles.

We are repeating our positive tune on online holiday sales this year and we have some statistics for support.

Our picks this week are about customer reviews, email subject lines and content.

This week’s list is shorter.

It’s been quite a while since the last “Picks of the Week” post. They are back!