It doesn't matter if you have the best looking site on the Internet. If no one (prospective clients) can find it, it's useless. That's the essence of Search Engine Optimisation (SEO). Search Engine Optimisation (also known as SEO) is a sales and leads tool. A successful SEO campaign will turn a good business into a booming business. However, you should be very careful while choosing SEO firm for your business. 5 questions to ask a search engine optimisation firm before you buy from them: 1.What are the best rankings or SEO results the company has achieved for high traffic keywords in competitive markets? 2.What is the company's current client retention rate? 3.How many SEO staff does the SEO company have available to dedicate to your website search engine optimisation project? 4.How does the Search Engine Marketing company measure success for a search engine marketing project? 5.How many years has the search engine marketing company been providing online marketing solutions for?