ROI – Return on Investment

Return on investment (ROI) is an economic measure for returning an investment made in a particular marketing effort, allowing an advertiser to assess and compare the monetary gain achieved in the campaign from the marketing efforts. This measure can be obtained and verified through Google Analytics, which compares the amount of money invested in online advertising (for instance, PPC), against the amount of leads and the number of visitors that reached the websites as well as the number of sales that were completed.

Additional Terms:

Google’s Penguin Update
WordPress
Usability
Organic Search Results
Link Building
Landing Page
Google Dance
Indexing
Email Lists
Duplicate Content
Domain
Canonical URL
Blog
Banners
Algorithm
Accessibility
Conversion Rate
Satellite Websites
Bid
Joomla
Google’s Knowledge Graph
Drupal
Link Exchange
Long tail
Google Webmaster Tools
Lead
Magento
Keywords
Mini Site
Search Engine
CMS
Site Map
Player Embed
Bread Crumbs
Google Panda Update
YouTube Channel
Contextual Advertising
Open Source
Google’s Search Engine Robot
Meta Tags
Affiliate Program
CPA - Cost Per Action
CPL - Cost Per Lead
Friendly URL
GDN – Google Display Network
Page Rank
Remarketing
RSS (Really Simple Syndication)
SEM-Search Engine Marketing
XML–Extensible Markup Language