When it comes to link building services offered by SEO firms, there are two types that can be witnessed. One is automatic link building and the other is manual. Automatic link building is via the use of SEO software where you just set the attributers and the software submits links to article and website directories ion your behalf. Although successful, this practice has been put into question by Google and other search engines and highly disregarded as it involves no efforts for uniqueness and might be considered as spamming. It is considered as a “shortcut” to higher rankings that in the long term would definitely bring with itself disasters. Please keep in mind that shortcuts do not work in SEO. On the other hand, manual directory and article submissions, although expensive and requires increased amount of time is a reliable method for higher rankings. This is because manual submissions come with a 100% guarantee of submissions along with backlinks for higher rankings. Moreover since these are manual they ensure unique meta titles and descriptions that cannot be considered as spam for search engines.