*Use them only to present printable versions of HTML documents (for example, a long article) or documents that are intended for print. Don't use them to present content to be read online.

*When linking to a PDF file, you must explicitly indicate that destination page is in PDF format. This will tell your visitors what to expect, for example a longer waiting period than for an HTML document, or fact that Acrobat Reader will open within their web browser.

*The best way to indicate that a link will point to a PDF file is either to use Google convention of writing symbols [PDF] before link text, or to use a PDF icon.

*Clearly state file size (to give users an idea of how long it will take to download) and number of pages (so they can have printer ready with enough sheets of paper). It is usually better to present these two pieces of information in a slightly more subdued font color than one used for your page copy (if you're using black text copy, you can use gray).

Finally, even though most computers nowadays include Acrobat Reader as standard software, it is always good to include a link to page where your visitors can download it, just in case they don't have it installed (the URL of current download page for Acrobat Reader is: http://www.adobe.com/products/acrobat/main.html ).

Additionally, your site may have some nice feature that should be highlighted and easy to find. Using example from above, your site may have a "Search" function that is useful for visitors to find specific products or information. In this case, put Search field and button at top of page, perhaps embedded in banner area. Make it visible! Don't bury it two thirds down page, where your visitor will see it after they've already spent 10 minutes looking for what they are trying to find.

In a nutshell, your website's navigation should consider following: from any page on site, can a new visitor to site easily and intuitively find their way around site? Will that visitor feel comfortable moving around on your site? Can they find Home page again? Is your contact information readily accessible from pages where it is needed most? Most importantly, can visitor quickly and easily locate product and/or services you are selling?

If answer is not "Yes," your website's navigation needs some redesign. Don't despair—if you have good, relevant content this may not be a huge project. And reworking menu and navigation may be just what your website needs to communicate professionalism and quality for which your business should be known.