Here are some links to general amateur radio websites that may interest you:
The Guide to UK Based Amateur Radio Web Pages
This long-established site by Andy Gayne, G7KPF, contains masses of amateur radio and other links.
Electronics and Radio Today
Run by prolific radio and electronics author Ian Poole, G3YWX, this website is ideal for those learning about electronics and radio. It has a section devoted to amateur radio and one on constructional techniques, as well as having many other sections.
Also, run by Ian Poole, G3YWX, this site is more advanced than Electronics and Radio Today, but includes approachable summaries of a variety of technologies and has sections on radio propagation, radio receivers, circuits, wireless and cellular, etc.
QRZ.com has served the amateur radio community since 1992 and has a wealth of amateur radio information.
The DX Zone
Thousands of radio related resources to make sure you will find what you need for your DX.
Southgate ARC News
A round-up of stories covering amateur radio and commercial radio, plus the communications scene.
Amateur Radio Relay League (ARRL)
The ARRL is the national radio society for the United States. Its website at www.arrl.org has a host of useful resources for new (and not so new) hams.
Hams have been putting stations in their cars since the 1920s. Today, there is great satisfaction in facing the challenge of installing a transceiver in a car, using somewhat inefficient antennas, and still being able to make contacts with hams thousands of miles away. This presentation outlines the fun that can be had when operating /mobile.
Discover the Magic of HF radio
This presentation is designed to introduce the new or recently-upgraded ham to the world of amateur radio in the HF spectrum. If you have ever had the desire to experience the thrill of communicating with hams across the country or halfway around the world then this is a good starting point. Topics include propagation, antennas, equipment, grounding, and safety.