Residual income online is the best source of income you can earn as it's regular and reliable too, but how do you build this seemingly elusive type of income, well there are many ways to do this and some are easier than others and some can be incorporated into your marketing campaigns that you may have already set up in a blog or a website, adsense is a form of recurring revenue that you can build online through placing ad code from google adsense, but there are many alternatives to adsense that you can place on your sites.
Another popular way of building residual income online is to build a membership site catered towards a niche market that you know a lot about and can relay high quality information in the form of ebooks and bonus reports and the members pay you a monthly fee each and every month for this informational content you will provide, and if you expand into sub niches related to your main niche you will gain high credibility in your subject area.
Membership sites can be quite lucrative if done right and especially if you find other Joint Venture partners in the same subject area and swap autoresponder addresses so that you have access to their subscriber lists and can therefore leverage each others lists and resources, this is what any company does, even offline in the real world, they join forces with the other companies sales force and market together so that they become stronger by business to business leverage.
Remember when you surpass your initial costs of running your membership site, webhost costs, autoresponder etc, you are deemed as successful, but don't always stop marketing your member site because if you stop then the new members stop and that's what you want more of to sustain your recurring profit.
Other forms of recurring or residual income are actual websites you can join for free such as Daily Pay Day.com and SFI, these have residual pay within the business opportunities, and they have other forms of earning income added to the product and services list.
Always in online business some form of residual income should be sought to surround your business in a passive income net, so that reliable profit is gained from your business marketing activities, and then you can concentrate on your own products and online business knowing that you have some residual income to fall back on.
Wayne Tully an artist, writer and affiliate marketer who does many online business ventures and earns a reasonable income online as a result.