What happened to my stuff on Minecraft?

So I was playing Minecraft and then i switched to another world. When I went back to the world I was playing at first and all my stuff was gone! EVERYTHING! Nothing was even in my chests! Then about two or so days later the same thing happened on another world and another! Please help! What is happening? I worked so hard on these worlds and I'm mad!

Java stops working while booting hexxit/Tekkit?

This happens to me with every modpack, it tries to boot, then a warning pops up saying: Java has stopped working, and looks for a solution. Vanilla minecraft works, but not modpacks (FTB or TEchnic).
I tried deleting every.technic, and using the.JAR instead of the.exe, nothing is working.

Good Fantasy / Adventure Books?

Can someone suggest some books based on this?

Ok, So I'm 15 years old and a guy
I have recently been feeling depressed. Mainly due to the facts that
A-Darren shans vampire/demon series are over, along with the wardstone chronicles by joseph delaney and michael grants -gone

and B- I sit in my room all day playing pokemon and minecraft

So, one of the key aspects that has changed in my life is that I haven't been reading as much since these authors stopped writing the books I love. Here are. Some books I Really enjoyed.

Darren shan - Vampires and Demonata ( Hated zombies )

Michael Grant - Gone series

Joseph Delaney - Wardstone chronicles

Lord of the rings. Which is my favourite movie or book of all time

Game of thrones

Anthony horowitz - Stormbreaker series and ravens gate

The fire within, the fire ethernal

Keep in mind that I hate over the top things although I love fantasy ( I hate twilight, dracula, vampirates stuff like that )
Sorry for being so blunt btw

Are there any smaller minecraft youtube groups?

I'm thinking about making a youtube group sometime in the future, but the people joining my group aren't going to be ready for a few years. Is there any smaller minecraft youtubers that are accepting people into their groups? I don't want groups like team crafted because its a little too big.

Why is my minecraft freezing and not responding whenever I click multiplayer?

It didn't happen until I started using 1.7.4 and I know it isn't my computer because I can still run games like Skyrim and Call of Duty with 60 fps.

It loads up in like 5 seconds and freezes the second I click on Multiplayer and if I click it again it goes not responding. I've tried waiting but it stayed on the same screen for 10 minutes until I closed it.

My client isn't modded or anything. It doesn't crash and show a message it just freezes.
And when I opened task manager it shows a couple java things so I think its running still in the background.

I also tried deleting the 1.7.4 in versions folder but now its saying java is still using all the.dll files even when I go into task manager and click end task.

Added (1). Update: I moved the 1.7.4 folder since I couldn't delete it and it downloaded another and it still freezes.

Do you have a Microsoft surface pro?

I want to buy one but I have some questions first
1. Can I use it as a regular laptop?
2. Can I download itunes?
3. Can I download redsn0w
4. Can I download uTorrent

Well basically can I download regular pc stuff like minecraft or would I be limited to just the windows 8 store?

What is a good windows 8 screen recorder?

I'm looking for an easy to use screen recorder, for windows 8. One that doesn't have an annoying intro, or where you can see the stop recording thingy. I have already tried EZvid, but I didn't like how they had the intro, and you could see the stop button for recording. I use OBS to stream, but there isn't a way to record through that I know of. I'm planning on using to record some minecraft cinematic, and add some music to it. I know there are some that will only post there name at the top of the video, I wouldn't mind any of those, but preferably ones that DON'T do that please. If you have ANY suggestions (none that cost like 300$, actually, please only suggest free ones. Please let me know, and what you think of them, etc.