Question: I am having difficulty aligning SNS buttons using CSS on this page giantmango.com/news. I am using the exact css and html, but I cannot align giantmango.com/news SNS buttons like the giantmango.com ones.

Answer: 
You answered half of your question: is it worth it? No, because you can't force it.

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> Runs the garbage collector. Calling this method suggests that the Java virtual machine expend effort toward recycling unused objects in order to make the memory they currently occupy available for quick reuse.
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This is almost EULA-English for "you can try but we both know the outcome". :)

Furthermore, application servers can (and often will) disable it using the `-XX:-DisableExplicitGC` command line option.

So what's the point then? Well, there could be one: some applications like to display the amount of free memory available on the heap, and before you refresh your display, it could be moderately useful to call `System.gc();` before it.
It is an `anti-pattern to use System.gc()` explicitly, though we use it to suggest JVM for sweeping garbage but it is up to the JVM whether it will or not, it further imposes some criteria that it look into when `System.gc()` occurs. If criteria follows then it acts; otherwise not.