Clarence Recchia
Clarence Recchia voted up Anonymous' answer

Website is the solution to start online business. Website promotion is really important in the virtual world.

SEM is a type of Internet marketing associated with the researching, submitting and positioning of a website within search engines to achieve maximum visibility and increase your share of paid and/or organic traffic referrals … Read more
Clarence Recchia
Clarence Recchia voted up
Sem is the main topic in online marketing and performance marketing channels like affiliate marketing, newsletter marketing and search services like seo and sea (search engine advertising) is a sem agency. A good sem agency has a lot of search and sem services like  - regards sema