As online marketing rapidly develops, new expressions – acronyms in particular – appear. Some never to be heard again, others are here to stay. These are a few to keep in mind:

SMO = Social Media Optimization

CGM = Consumer Generated Media

SEM = Search Engine Marketing

SEO = Search Engine Optimization

SERP = Search Engine Results Page

CTR = Click Through Rate

PFI = Pay For Inclusion

PPC = Pay Per Click

PR = Page Rank

RT = ReTweet

UV = Unique Visitor