ADmatix - Text ad exchange with rewards earned for hosting impressions, clicks and referrals. Flexible hosting (2, 4 or 6 ads shown per page), small javascript code to paste, easy to customize look using font tags or CSS. Purchase ads at a rate of 30,000 for $10, 100,000 for $25, paypal or credit cards accepted (through paypal)

AdProject.net - Banner and text ads, both of any size
- Payment by credit card (Currently Visa only, MasterCard and PayPal coming soon)
- $5 minimum buy
- Text ad appearance is completely customizable by each site
- Default ad for unsold inventory
- Frequency caps
- Flight dates

Blogads - classified ads that appear in blogs and other independent web sites. Each "strip" of Blogads is managed by an independent publisher who sets prices and decides which ads appear

Daypop - currently costs $0.50 for every 1000 impressions with a $10 minimum order for an ad box on a search result page

Flazoom.com - Text Ads are priced at $2 per thousand impressions, with a minimum of 5,000 impressions. So for as low as $10, you can announce new projects, articles, companies, and services to thousands of Flash developers who read Flazoom.com

Google AdWords - There is a $5.00 activation fee for Google AdWords. After that, you tell them how much you are willing to pay per click and per day. You can choose a maximum cost-per-click (CPC) from $0.05 - $50 and set a daily budget as low as 5 cents or as high as you want

idya Adystem - a text ad management solution for websites. Text ads have become the most effective method of revenue generation. They are simple, unobtrusive and blend easily into the design and layout of the site. AdSystem enables you to implement a text ad system for your website in a few minutes

Link Auction offers webmasters the ability to buy text link ads, sell text link ads and exchange links with link partners via an online auction

LinkAdage Auctions - Offers blog owners the chance to sell text links on their site at market value via a private on-line auction environment

MetaFilter - non-invasive, non-annoying, low-cost way to get your site in front of thousands of people, to announce new projects or boost traffic to your sites. Here is a list of all currently running TextAds

OneMonkey.com - provides co-branded cost-per-click (CPC) and cost-per-impression (CPM) text ad hosting to website administrators allowing them the ability to sell advertising space on their websites. Works with static sites, search engines and dating/singles sites. Advanced algorithms use clickthrough rate and CPC together to determine where each ad is shown. Pay the minimum price for any keyword. Or pay more to get more exposure. No 3 day posting delay, all ads go live as soon as the host approves them

Pheedo - makes it easy to get your message into thousands of blogs and RSS/Atom feeds from micro-publishers and large media outlets alike. With pinpoint accuracy, target the right audience spanning sports to politics, music to technology, and everything in between

phpAdsNew - an open-source ad server, with an integrated banner management interface and tracking system for gathering statistics. With phpAdsNew you can easily rotate paid banners and your own in-house advertisements. You can even integrate banners from third party advertising companies

Popk.net is a textual ad exchange system. You show a small text ad on your site, and in return your ad is shown on other sites

skip ads - Text Advertising per le masse (in Italian)

TAGword.com - a revolutionary text-based advertising system that has you making money from your website directly from your visitors. TAGword lets you personalize everything, from ad colors and fonts to placement, price, and size. You can even set up your own default ads and choose the words you don't want in your ads. You can choose to review questionable ads with the advertiser or even ban them completely from advertising on your website. Best of all, it eliminates the middle man, so you can keep more of your own money

Text Link Brokerage - "Our specialty is helping your web site get ahead using quality text link advertisements. Unlike some text link sales services that have not been around very long, our customers enjoy a safety net that is not equaled anywhere. We will not place your text links on any site that uses unethical means to build it's value, nor will we place your text links on any FFA, Guestbook, or other "junk" pages. Our aim is to help your web site succeed in todays high competition marketplace"

Textad Exchange - easily exchange micro ads with other sites. When you join, you'll be able to easily create your ad and customize how ads appear on your site. Ads use simple cut and paste HTML and javascript code. Customizations are done with CSS

TextAds - an open source program that allows webmasters to offer self-serve text based advertising to their website users. TextAds are a simple, polite, and inexpensive alternative to banners and other online advertising. TextAds provide all of the benefits of other forms of online advertising without the annoying downsides - Bill Rini

TextAds - self-service text advertising network in Dutch

textads.biz - a flat 10% of revenue generated from the ads is taken by the host and all financial transactions are done using PayPal

TextAds.de - German site

TextBoxTraffic - is an impressive new method to drive traffic to your website. The effectiveness of text links has been combined with the best features of a banner exchange to create an easy way to earn free traffic to your website, without the need of large banner images or popup ads

Textvertise - For as little as $10 your site can be placed in front of tens of thousands of potential customers! hijinks design's text-based advertising system provides a non-invasive low-cost way to get your site in front of online customers today

Txtswap - enables you to get more exposure for your website by displaying your text advert on websites all over the Web, in return for you displaying a text ad on your site