How to make spider farm in minecraft?

I need string so I wanted to make a spider farm like a dark hole with an arrow slot and stuff but it kept spawning other mobs. Is there a way to only let spiders spawn there?
(I'm using PE not PC)

What is a good MMO where you can decorate, customize, and trade items?

I really miss the Playfish game Pet Society on Facebook. Ideally, I would still be playing this, but it is no longer available.

Does anyone know of any similar games where you can trade items with others and customize your character's life?

I'm not interested in Club Penguin or MineCraft.

Any other suggestions are appreciated! Thank you in advance (:

Added (1). Not too much of a fan of runescape either tbh, though I appreciate your suggestion.

Why do people get butthurt over minecraft?

My friends who play minecraft talk about it all the time I don't say anything because I don't play it.One day one of my friends who doesn't like minecraft said it was boring and that she didn't find it such a big deal as everyone did. Everyone got mad at her saying she shoudnt judge the game and that she's stupid Cx what? I know maybe they like the game alot and it's their opinion but like WTF don't get so hurt about it. I like alot of things too and they make fun of it and think it's stupid but you don't see me almost crying in rage about how they are stupid for not agreeing. Also alot of people like minecraft and get really hurt if you say you don't like it or it sucks:| … Why? Is it just like the type of people or are the obsessed? Sorry if this offended anyone /.\ not trying to say everyone is like this just alot of people I see and know.

What jobs can I put on factions Minecraft?

So… I like factions and I would like to put my faction a little bit more like RPG Faction So I was wondering what Jobs I can put so that my players could have to work on and get payed

How to play demo minecraft?

How do I make a mincraft account because when I hit enter nothing happens please help or can someone give me there stuff to play I really want to play

Looking to buy gaming pc and have no idea about specs or anything?

Right so I've always played console and don't know the first thing about PC gaming but I want to buy one I figured buying a ready built one would be easier I can't be bothered building my own I'm not good with technical **** like that I have a budget of about 600 - 700 pounds the main games I would be playing are minecraft, battlefield, gmod things like that basically what is the best all round pc for me?

Why does Fraps lag when I record Minecraft?

I don't understand why this happens, I get lag spikes during recording and when viewing the completed video the lag is 10x worse sometimes dipping as low as 10 fps despite having what I think is a fairly powerful computer. I have dedicated more RAM to Java which had no impact. I even turned Minecraft's video settings down to near the lowest and still got the same amount of lag if not worse. I would really appreciate anyone's help with this problem. My computer specs are:

Processor: Intel Core i7 3770K 3.5GHZ

RAM: Crosshair 8GB 1600MHZ (4GB dedicated to Minecraft)

Motherboard: Asus p8z77-v lx

Hard Drive: 1TB Seagate 7200RPM (250GB Free)

Graphics Card: HIS 7970 IceQ GHz Edition 3GB GDDR5 PCI-E DVI/HDMI

Note: My PC is well cooled and suffers from no other issues.

Fun games on the computer?

I'm a girl and I'm 14. I have a laptop but I'm not using it as much as I would like too. I want to get a few games on there. I've already played runscape (childhood game), and minecraft. I'm not interested in games like league of legends at all. Just simple games like minecraft are fun. Any ideas? (I can pay too)