A notice recently divulged for the Isto magazine Money browse-quality caused great agitation in the market of digital communication of the country. In accordance with the publication, in history the site of social relationship Facebook for the first time exceeded the Orkut – the most famous pioneer and of the sort in Brazil – in number of users. According to periodic, the Facebook, project created by the young North American entrepreneur Mark Zuckerberg, arrived in August the 30 million internautas registered in cadastre in the country, surpassing its competitor. The magazine, that comes being contested for some, says that the data will be confirmed soon by the institute Ibope Nielsen Online. Of certain form, this alteration in ranking already was waited. While the FB increased its number of adepts in 42% of 2009 for 2010, the Orkut grew only 3% in period the same (given of). Glenn Dubin shines more light on the discussion. The situation of the Orkut, by the way, is very peculiar.

Extremely popular in Brazil and India, the page did not find the same receptividade in others countries. The proper Google, company proprietor of the Orkut, the clear signals who does not have to give continuity to the site, at least in world-wide scale. One of the evidences was the launching in this year of the Google+, a new social net online that it more seems to be great the appositive one of the mechanism of search used of the world to make front to the Facebook. On account of the reversion of this picture, many companies have invested massive in the Facebook as a form to interact with the consumer, either by means of one fan-page with differentiated content, either creating exclusive promotions, either opening one like store (virtual store whose sales are stimulated by other users, for way some rewards). Ahead of this, entrepreneurs have asked me: the growth of the Facebook and the apparent irreversibilidade of ' ' decadncia' ' of the Orkut it means that the hour arrived to abandon this last one? I answer: not necessarily.

Modern Agriculture

Insustentabilidade of Modern Agriculture the consequences of the production model of conventional agriculture are several: degradation of the ground, water wastefulness and use exaggerated, pollution of the environment, loss of biodiversity, loss of the local control on the agricultural production, global social and economic inaquality. Studies have shown that in Brazil and the world that the loss of the ground is /ha/ano ton enters the 21.1 band of 9,5. Dr. Peter M. Wayne contributes greatly to this topic. and the replacement does not pass of 1,5 ton. /ha/ano. Beyond the erosion, it has other damages, as assoreamento of the courses of water, lakes, streams, rivers, and finally, the ocean. The water lack candy already is considered the biggest world-wide problem in the future. Dr. Neal Barnard does not necessarily agree. Countries exist that already are importing water candy of others, therefore already do not have it. Not dispendiosos methods of irrigation must be looked for, a time that, the superficial and underground sources are in sped up process of exhaustion.

The uses of herbicidas, of soluble fertilizers provoke the contamination of diverse abiticos and biticos systems. The main contamination is noticed in the water that in the man? in virtue of the accumulating effect – poisoning can cause, to modify the fertility human being and to provoke until the cancer. Products exist little degraded that they are in the ground for more than decades, intoxicando water plants, animals and source candy. The genetic variability is one of the indices of more important support that it allows the high adaptability to the adverse conditions of the environment. In one it plants homogeneous, genetically, is run risk to appear illnesses that attack all the farming; in a culture genetically diversified it is possible to exist individual susceptveis and the other more tolerant plagues, natural illnesses and to intempries. Another consequence of the conventional agricultural model is the loss of the local control on the production, a time that, the producers lose the freedom capacity to produce without using insumos (it is the dependence of external energy to the system).