I've been trying a lot of distros lately and i would like to give RHL a try but i didn't find a download link on Red Hat Linux website.. Where is it? Where do i download red hat linux?

Red Hat is a little different. To get a fully operational red hat system that will be able to update, you have to pay money. There are free trial versions, however, you won't be able to get updates to them after the trial length (i think its 30 days). However, red hat does have to release its source code(updates included) and when they do, other distros will use it to build a fully red hat compliant system. Centos is one of them.

or--how about Fedora?
http://fedoraproject.org/

Also, most of these kinds of questions are covered at:
http://distrowatch.com

As CRC123 pointed out, there are different flavors of RedHat. RedHat Enterprise linux is pay-for, with support and other goodies. Mainly geared towards servers and businesses, who want a support # and 'official' patches.

Centos and Fedora Core are two 'RedHat' offerings. Basically the same, but without support. The 'free' versions....

http://fedoraproject.org/
http://www.centos.org/

oh i got it, so it's just like SUSE before version 10 (openSuSE). But i just don't know why they have to give the source away..

Read the GPL they can make money off of someone else's gpl software but if they change anything they legaly have to make the source available for free.

ok this is not true. RHE is 100% FOSS, what you are paying for is a level of SERVICE, this is legal to charge for. Red Hat no longer provides ISOs of their server class distributions, but they do offer all of their sRPM's (source RPMs) for free and for download.

in the case of CentOS, it is not "compliant" it is RHE without the trademark RH logo's. that is the ONLY difference in a CentOS and RHE system.

So if you do not want to pay for a RHE ISO and do not need their service support, then grab the CentOS ISO and be happy knowing the only difference is that CentOS group has removed all trade mark icons, logos, etc... from their ISO and changed the name of their fork to CentOS instead of RHE.

again RHE is NOT PAY FOR, it is pay for support and service. the OS is still 100% free. see above.

I agree it is free (which is why centos is able to get the source code as I mentioned in my post)

In defense of myself, I was speaking of red hat's updater that is installed when using red hat. In order to get the updates automatically and hassle free without having to build the update/patch yourself, you have to pay (for the service of having it done automatically for you) and then the updater will work.

And by Red Hat Compliant I mean if a program will run on Red Hat, it will run on Centos. I guess the correct term would be binary compatible?

Me venting: People are so anal about terminology around here geez. phew.

... and just to clarify, Fedora is not generally install compatible with RHEL/Centos. Its the bleeding edge/dev version of SW that will eventually end up in RHEL.
IOW, don't try to mix Fedora & RHEL sw on the same install.

If you want Red Hat for free, get CentOS. I use CentOS as back end servers at my work and it is 110% awesome!
http://www.centos.org