Thumbnail gallery post

A thumbnail gallery post (TGP) is a common type of ad-driven website that provides links to free Internet pornography. [ [http://www.cozyacademy.com/classrooms/tgp/index.asp Tutorial about TGPs and galleries] for adult webmasters, by Cozy Academy. Accessed 19 September 2006.]

Traffic trading and TGP scripts

TGPs employ a variety of schemes to trade traffic with other TGPs; signing up for these trades is usually easy and free for other TGP owners. Perhaps the most basic trade is to link to other TGP sites.

These trades are reciprocal: by looking at the referer header of the HTTP requests, a TGP owner knows where their traffic comes from; a site that doesn't provide enough visitors will be excluded from further trades. Both of these traffic trade schemes are therefore susceptible to cheating: a trader can use so-called hitbots to create bogus traffic from his site to another, in order to get good traffic in return.

Scripts that automate the maintenance of a TGP, manage traffic trades and protect against hitbots are readily available. Some of these are even free, financed by an occasional redirecting of surfers to a site under the control of the script's programmer, or by advertisements directed at other webmasters on the gallery submission and traffic trade pages.

TGP2

The success of the TGP format forced some adult webmasters to rethink their role in promotion of commercial sites. Some webmasters believe that TGPs help to supersaturate the Internet with free pornography. A new format for organizing previews was tried. This format, named TGP2, limits the exposure of the surfer to free content in many ways. For example, no more than 12 thumbnails are allowed per page, of which only 5 can link to images (and not directly, but to pages with images and ads) and the rest must link to signup pages. The TGP2 galleries should only include softcore pics and may not link to TGP sites. Most TGP sites do not allow TGP2 galleries to be listed. The concept received very little surfer approval and high traffic levels were never achieved..

Fake TGPs

Some websites appear to be TGPs, yet all or most of the featured galleries belong to the same webmaster and promote a limited selection of commercial websites. Such fake TGPs often contain links to other fake TGP sites owned by the same group or individual. Paysite owners produce and host ready-made galleries known as free hosted galleries for use on these fake TGPs.

Many sponsors also now provide webmasters with TGP templates which feature rotating galleries of the sponsor's sites. All a webmaster has to do is link the site using their referral code and surfers are provided with freshly update content (often changing with each reload).

Circle jerk (CJ) TGP

These sites look like TGP sites but end up sending users on a 'circle jerk' of blind links. When users click on a gallery link provided by a TGP, they will be unwillingly redirected to another TGP instead. Many legitimate TGPs do this to some extent, either by having some links redirect to other TGPs, or by having all links do so a certain percentage of the time. CJ TGPs almost never have any real content. The method of earnings for these sites are selling large volumes of traffic, non-adult sponsors (who sell virus protection, adware scanning, privacy protection, web history cleaning software) and adult sponsors.

ecurity concerns while browsing CJ sites

Many CJs attempt to trap the hapless viewer by resizing the browser window, opening new windows, installing spyware, adware or dialers (for instance by having the user download a trojan horse fake codec such as Trojan.Emcodec.E or exploiting browser bugs), changing the home page and adding bookmarks. It is therefore advisable to visit these sites only when Java, ActiveX and JavaScript as well as other scripting languages have been disabled in the browser and the system is fully patched. Users who are infected with potentially unwanted programs (PUPs) and other malicious software usually end up with a variety of issues, like modified host files, endless popup ads (originating from the user's own computer) browser redirects, etc.

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