Generally, natural search engine optimization tends to produce longer lasting results. This is because as a part of this strategy, several off-page techniques are implemented including articles, blogs, slides, videos, PR, social networking and social bookmarking posts, which increase the number of back-links to your sites. All these postings are done on high ranked sites so that your site may also improve the reach towards its target audience.Unfortunately, these long-lasting results are not the case with PPC. If you stop your PPC campaign, links to your site will no longer appear on other sites. But if you are looking for quick, immediate results, a PPC model may be appropriate. Ultimately, the choice depends upon your personal goals and preferences. If you want immediate results, then go with PPC. But in most other cases, it is better to choose the cheaper and more natural SEO technique. Implementing a combination of the two can provide outstanding results. Before you implement any online marketing strategies, you should consult an online marketing specialist/expert to discuss your individualized options.