Clicksor

If you are a publisher or a webmaster Clicksor is another Google Adsense alternative you can look at. Clicksor offers webmasters the opportunity to earn additional income by simply underlining a selection of clickable text or dislaying targeted contextual banner on their websites.

It pays you up to 70% of the advertising revenue generated from your website or blog. Contextual Advertising Technology by Clicksor allows the visitors to enjoy the content of your website and bring generous earnings to you at the same time.

The sign up process is quite simple and is absolutely free to join. Another advantage of Clicksor over other advertising programs are that they have a live support system that helps in soving any problems in real time.

Clicksor provides online real time stats and a fortnightly payment schedule. In any pay period in which your earnings crosses $50.00, payments are made either by check or instantly through PayPal. Revenue totalling less than $50 will be rolled into the following period. That means you will get paid twice in a month, which is really attractive.

Perhaps the only deterrent for webmasters to join Clicksor may be the qualification requirement of participating sites to have 5,000 page views per day or 150000 page views per month.

Apart from this their other requirements are :

Site must be in English written content.

Sites must not be a personal or free hosting websites.

Sites cannot be used for software trading (warez).

Sites must not contain or link to any forms of illegal activity (i.e., how to build a bomb, hacking, etc.)

Sites cannot be proxy sites or contain links to such service.

Sites cannot participate in or transmit inappropriate newsgroup postings or spam.

Sites under construction, incomplete or contain little original content will not be accepted.

Clicksor is definitely worth having a look if you can meet these requirements.

You should also check this thread. Apparently Clicksor had problems with some customers last year. Hopefully, they have improved their services since then.