Yes, it is possible. So long as your mobile is WAP enabled, and they all have been for some time now.
It's simply a case of making sure the WAP settings are correct. The easiest way of accomplishing this is to call your service provider and ask them to send them to you in the form of an SMS which you then simply save. They will put themselves in the correct places when you do. Somewhere in the WAP browser menu will be a 'Go to' option into which you can type a web-address, and away you go.
Be prepared for a lot of scrolling however. Web pages with a lot of content become very long and narrow when displayed on a tiny mobile phone screen. Also, watch the GPRS data charges. They can begin to mount up if you open a lot of large pages frequently.