morals and values

Morals and values are subjective - the law decides what is immoral and what is not. Every person also has their own ideas too, but, because of the way our society works, we no choice but follow the regulations that law places, wether or not we believe in it.

Just trust your own instincts, but keep your mind open. (Meaning respect that other people will have different morals and values)

You're allowed to approve of whatever you want to approve of, whether it be tipping waitresses, murder, or donating to charities.
But also respect the law. I have many morals and values that don't completely correspond with the law, but I realize that this does not give me special privileged to disregard them.

Just keep that in mind and you should be fine.
There are no truthful or untruthful morals. There are only morals you choose to have and not have.

Morals and values are always in the eyes of the individual. Therefore, can have them. What they might be is also dependent on the individual, so there's no standard. Most of us can agree on a few of them here and there, but even with those, we often find quite a bit of small disagreements.

The first question you asked, though, is more interesting. "What is truth?" Truth is a myth. There is no truth. The fact is that the only way that right and wrong are decided for a large group of people is by a set of laws, which could result from a religion or a state. And even those can conflict. We like to think that the moral code we follow is what's most correct, and the state or religion of which you are a member always loves to perpetuate that belief so that more people can be like them.

Simply put, a concept of right and wrong is just that: a concept. There is no hard and fast right and wrong.

The different ideas about morals and values have always been there. The internet just makes it possible for people to put it there and give his/her opinion.

Morals and Values are subjective, meaning you decide whether what's right or wrong. Of course not in that literal matter, but like when you see a kid crying because it accidentally dropped his ice-cream and lost his mom, do you buy it a new one and then help it find its mom or do you help it find its mom so she can buy it a new one?
Either way it's both correct in my opinion.

It's complicated, I know =P
But mostly you just have to listen to your gut feeling.

Moral change with time and culture, so I stick to religion, not popular and slightly archaic but none the less mostly consistent