Speaking of blogs, this is a very good venue for generating ad revenues. That's because blogs are usually updated frequently and highly indexed for search engines. They can become popular very quickly and generate significant interest from the Websphere and also, more and more, from mainstream media. If you get a mention in the mainstream news, you can see your blog's popularity shoot up tremendously and with that comes the opportunity for more and more advertising revenues.

Even if you haven't had a mention in mainstream media, it's fairly easy to set up multiple blogs on various niche topics that you've researched. You should use your knowledge of SEO to write relevant posts and to attract the search engines. You should tag and categorize your posts extensively. If you network with other bloggers, it gets even easier to attract more and more attention just by adding a post daily and learning to comment on other similar blogs, with a backlink to your blog, of course.

Once you have the blog at a good level, think about offering advertising on it from sponsors. Just add an “Advertise on this blog” link and then give out your terms. These will be sponsors who will pay you to either add a link to their offerings or sites, or to add a link and a brief description. These are typically done on a subscription basis and placed in an area of prominence, like the BlogRoll so that people who like your blog will check out the links you recommend.

Do be careful about adding too many of these links and try to avoid third-party link sites like Text-Link-Ads that are now being targeted for downgrading by Google. It doesn't do you much good to get a sponsor paying $50/month for a link only to find out your entire blog has been blasted off the face of Google for using too many sponsored links or for using places that sell links to blogs. So, you can use this strategy, but be careful to keep your blog active within Google's search engine and check their policy on sponsored links, as it can change at any time.

If you have a technical streak, there are plenty of people who would love you to review their electronics or software online. Since writing and being technical is a very narrow skill set, you can even set up blogs for just this area and make a bit of money. Check out SofwareJudge.com to find opportunities to review software online.

Sell Promotional Items

If you are the type of person who is always coming up with brilliant one-liners, then you may have a career in advertising by selling promotional items. With places like CafePress.com, you can even sell items with your website's URL on them and a snappy saying, thus getting twice the bang for your buck! You get to sell a physical item you didn't produce, and you get to use it to advertise your sites along with the sale!

That's because CafePress let's you create all sort of items from their stock, one at a time. They provide the “wrapper” for your images and sayings, and you just create it online as a virtual product. Then, you can link to that virtual product on your website or blog and sell a particular product that can appeal to a mass number of people, without ever having to keep any inventory either!

Now, the types of products that you can create range from imprinted cups and T-shirts to other more personal items like photo calendars. You can create an entire virtual store and then use it to sell items that you only created in your imagination. You will get a commission from each sale that you make and it literally costs you very little to try it.

You can even order the items for your business and keep the commission as a discount for ordering through CafePress.

Sell Infoproducts

Here is a great way to not only advertise your offerings, but also make money too at the same time! That's because you can create an entire line of infoproducts which not only provide your customer with valuable information, but also give you space to put your own advertising for upcoming products within the infoproduct for people to buy even more!