Hi, you'll find all you need to know about using HTML (Hypertext Markup Language) to create Hyperlinks on normal web-pages etc.
here and
here.
Forums such as this one use a variation called BB code (Bulletin Board Code), and provide basic tools to format text, create Hyperlinks, and display pictures or youtube clips. On this forum, the tools are accessed via the little square boxes above the 'compose window' where you type your replies etc.
If you're wanting to use Hyperlinks on your Blog, there may be similar tools, but as I don't blog, I don't know - I'm sure that there will be a 'primer' or Help Page somewhere to guide you.
There are a lot of tricks that you can play, such as using a picture as a Hyperlink :

but you do need to 'play around' with it for a while to see just what happens!
If you click on 'Quote', then you will see how I made the Hyperlinks in this post.
If you need to know any more, don't hesitate, just ask...
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