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Focus on your key areas of expertise, and display them professionally. Much like you would do when having potential employers contact references, put your best foot forward for potential clients. Include descriptions, where appropriate or necessary. Don't use jargon. If you are offering technical expertise, include descriptions that appeal to your client base, not your peers. For example, if you are showing that you can code with PHP and AJAX, don't say "in this case, if the input field is empty (str.length==0), the function clears the content of the txtHint placeholder and exits the function." The person who needs you to work on their site will just scratch their head and say "huh?" Say, instead, "Start entering text into this field, and it will auto-complete." Whatever your business, whatever your venue, keeping your name in the air is key to internet success. Have a business account on Facebook, Twitter, and LinkedIn. If your business is graphically oriented, have accounts on Flickr and Tumblr as well. Whenever there is news of any kinda new contract, a new page, a new entry, a new photocross-post it to all your social media sites. Also make sure those sites link back to your main website, and that your website has links to all of them. There are many companies and webmasters who use affiliate programs to boost their online sales, and most of these affiliate programs are free to join. When you sign up for an affiliate program, an affiliate link with a unique affiliate ID will be assigned to you. The affiliate link is used for marketing the products of your merchant. When a visitor buys an item through your affiliate link, you earn affiliate commission. For example, if you are an affiliate marketer for Musician's Friend, an online musical instrument retailer, you can advertise their products on your site. If a person visits your site, and clicks on the link that takes them to the Musician's Friend website, and they purchase an instrument within a certain amount of time (24 hours or more, typically), you get a commission on the sale. Google's AdSense is a revenue-sharing opportunity for small, medium and large web sites that places ads for goods and services that are relevant to the content of your site, targeted to the people who frequent your pages. In turn, you get paid a small amount when the ad is either displayed on your page, or clicked on.
Add catchy content to your site. Be social. Become an affiliate marketer. Add Google AdSense advertisements to your blog or website.