Apple's web page for the iTunes Holiday Sampler has broken links for some of the artists and songs and even some misspellings. The names and links are correct in the list at the beginning of this thread.
I just found out that the Italian iTMS is also offering free Singolos Della Settimanas (Singles of the Week). This may have been going on for some time, but I start the list on Tuesday, December 22.
Looks like the Itunes 12 Days of Christmas is set to spread out further this year. Last year the giveaway was just in France, Germany and the UK iTMS. This year it covers ALL of Europe except (it seems) for Belgium, Denmark, Greece and Spain. The giveaway is 1 per day starting on Boxing Day (December 26) and going through January 6. The giveaway for each track/video last for just 24 hours. Last year, all 3 stores shared the same giveaway except for TV Shows and 1 day of music, I would expect something similar this year.
Below find the links to each country's webpage tracking the event (or iTMS page for some of the links). Links to the specific iTMS store's daily giveaway can be made from the webpage. (Finland, Ireland, Luxemburg, Norway, Portugal, Sweden and Switzerland share a single web page and giveaway - corrected as of Day 4)
Also, this year, "there's an app for that"...iPhone app for getting the free track/video each day available also from a link on the webpage link below.
Enjoy your free 20 song Starbucks "Pick of the Week" Sampler from iTunes. This free sampler features music from Sting, Moby, Iron & Wine, Metric and more. Codes are available while supplies last. Be sure to redeem the code before it expires and check back often for more free music, TV shows and more. And spread the love around, share this with your friends so they can get their free music sampler too!
Please note this free music offer is only available on the US iTunes Store. Codes are available while supplies last.