anybody knows a good tutorial on how to remove a background on a pic?... i seen a few tutorials but im wondering if you guys have an easy and effective way to do it.. thanks in advanced

what is it a picture of and how detailed is the subject you want to keep?

Post the pic - we'll see what we can come up with.
-Lew ;-)

I just use the lasso tool to cut away everything I don't want. You have to zoom in a lot to get a final cut around whatever you want to save. If you're going to paste whatever you've saved into another picture, you should slightly blur the edges just to soften them so as to look more natural. Then adjust color and all that jazz to make it fit.

Honestly make a layer mask and color in what you don't want in black. That way if you screw up you can always color it back in with white.

Layer masks work that black will not like the picture threw, and white will. Try it :)

Well, having not seen the image, I'm gonna take a shot at it.

Use the Lasso Tool to select the "general" unwanted areas and Delete them.

Make a Layer Mask and paint black to hide what you don't want to see - that way you can also vary the softness/hardness of the brush depending on what is in focus and what is not.
For edges that go a long way that are smooth and rounded (think of the side of a watchface, coffee cup, hood of a car, etc.) use the Path Tool to create a spline that matches the curve, use that selection (feather .5 pixels for sharp edges, or it will be TOO sharp - otherwise feather to taste if it's soft) and paint black (or just fill) to hide/show what you do/don't want to be seen.

Hope this helps-
-Lew ;-)

there are several good masking techniques.But I generally use the pen-tool technique.Outline the subject , then go to path>make selection.Presto ! You could go and use more elaborate methods for subjects with hair, but I believe it's a waste of time, since details will get lost anyway.The pen tool ensures flexible usage and if you have difficult areas like hair, you can trick them out by using the smudge tool at 80-90% strength and 900 fading.Hope this helps !

Another alternative is to use a plug-in.  I like Vertus Fluid Mask 3 (  http://www.vertustech.com/  ). However, these are not free and I would only recommend them if you are doing a lot of this type of image processing.

 actually, using the good-ol pen si way faster.... I recommend it if your hands are shaky or you are bound to make many mistakes (like I tend to). Cheers ! :) those plugins cost cash and there's no reason to use an external plug if you already paid a load of cash on PS.Why not use the feature you spent 100 bucks on, rather than buying another one for 50.I just don;t get it ! 

Personally, I never use selection tools.  For me, they always end up needing the same amount of work / adjustment / correction as if I had simply used a layer mask.  So I'm with FrozenWaltDisney on this.

I've heard Vertus mask  is good, especially if you're dealing with hair, but I haven't tried it myself.

Perhaps, as some have suggested, you could be more specific as to what type of image you are working on?