Answer: Google appearance is mainly determined by recurrence. What does this mean? The more often something is searched for and clicked on, the more chances there are that it appears in higher situated places. Thus: I have an article on ‘Spanish coffee’. It is read once or twice by some minor research engine (Technorati). The fact that it is read and searched for, makes it appear on the third page of Google. This attracts other readers and the article finishes by appearing first page. If people continue reading it, it stays there, if not, it falls back to a second or third page or disappears completely. Specific search though, for example ‘coffee+name of page’ does make it appear again rewarding its very older presence.
This is the natural appearance of Google. Of course you can pay a bit to have your page or article appearing first place first page (it’s very expensive). Long protocole pages are favoured in regard of short protocole pages because they pay for a determined appearance (usually included in server costs). But: Google reads easier short protocole than long protocole, and not at all text in Flash, for example. To say: WordPress, for example, has a category system: thus you range your stuff under ‘economy, turtles, cooking recipes, etc.’ Economy is a term of very high recurrence, and this will make that your article appears very easily in common searches. On top, Google considers the ‘freshness’ of information, so that easily changing short protocoles are always invading top places at low cost.
Thus, it is difficult to warrant a first place for a page in wordpress, for example, or just for a while (no cost in private server). But the possibility of having people falling on your page by accidental searches is indefinitely much higher. Advantage: to attract a potential customer is difficult through long protocole as he has to know the name of your company and/or page, while it is enough to have a lot of silly stuff on your always changing short protocole page in order to have extremely high potential customers arriving on your page accidentally (secondary researches). Like this one. (Reaching now around 50 visits a day mainly through the Google search section.)
If you’re very clever and delimit a field of interest of people that may be potential customers, more or less what they like, what they do, what they aim at, what their professional activities are, you may fish thousands of them through related subject information.
Remark: although I don’t know whether it is intentional or a scientific consequence, due to the fact that Google is formed in some kind of touching cloud system (in English you have x appearances, but in French you have z appearances, if in English you have 10.000 appearances it may finish by affecting appearance in French, for example, meaning that your notoriety in English speaking countries may not mean you appear necessarily in another language), as it is possible to forbid the appearance of some search in some language, it seems to recreate the psychological effect of repression and appears much easier in foreign languages that are usually at the other end of the world. Tested with some ‘horrible’ articles, that didn’t seem to be of the liking of some interests related, they were read eagerly and Google translated into Chinese, Russian and Persian, which was not the case before.
And that’s perhaps why I do personally adore Google boy: giving in to all pressures it assures divulgation and freedom of speach!