1--I was cleaning out my Kindle on my Amazon account and I noticed several books/games that say "updates available". How? Does it cost more than the original purchase?

2--What happened to my daily email from Pixel? I enjoyed it!

for your first question--the update came from the publisher of the book/game...sometimes it's to fix formatting or editing, or add additional content to a game in some cases.  It does not cost extra for the update.  If you want the update, just click on the button to update it and it will be downloaded to your Kindle when you turn on the wireless.

Not sure about the 2nd question...sorry.

Lot of sites that post Free Kinlde ebooks have stopped sending email allerts.  Check direct with the web site.  

I still get pixel every day, check your spam folder.

Pixel isn't coming to me any longer either and it isn't in the spam folder.  I was getting emails from another site also and they said they were stopping because of changes being implemented by Amazon concerning free books.  Don't know what the changes were though.