Search engine PPC tools
Google AdWords
though expensive , Google AdWords is still the most coveted tool to drive traffic up to 65% . Google sponsored links are an excellent way to gain brand exposure and attract qualified visitors to your website.
Yahoo! Search Marketing
Yahoo only has 14% market share compared to the other big search engines but it has the highest search success rate at 81.14%
Bing AdCenter
two powerhouse rolled into one platform lets you interact with over 30% of search traffic
Baidu Phoenix Next
is China's #1 search engine with 75.9% of the market share while Google China at 18%. Read about Baidu PPC advertising from expert like
Gordon Choi
Yandex.Direct
If you want to buy PPC ads for Russian audiences
Google AdWords tools
Google AdWords Keyword Tool
use this tool to find out what related word searches your ad will show on
Google AdWords Traffic Estimator
use this tool to plan your budget, see rough estimates on clicks and bid prices for your ads
Conversion Optimizer
use this tool to help you achieve double-digit conversions by bidding on your CPA (cost-per-acquisition)
AdWord Accelerator
this tool lets you access/use keyword basket, estimates and competition tracking in one convenient suite
Google AdWords Manager
$99/month for a Pro account, you can access all the social media, PPC tools and SEO, social media.
free accounts gives you access to create AdWords campaigns, adjust budgets, pause or start campaigns etc.
AdWords Wrapper
100% FREE, online, time-saving keyword tool that wraps keywords in "quotation marks" (phrase match), [square brackets] (exact match), +Modified +Broad match, -"Negative Phrase" match, and -[Negative Exact] match for use in Google AdWords campaigns.
Keyword Wrapper
free tool that allows you create various combinations of your keywords.
[exact], “phrase,” and +Broad +Match +Modified match types.”
AdGrenade
fast & efficient way to expand your keyword list
One time cost of $147
AdWords Editor
manage large AdWords accounts efficiently totally free
Negative Keywords Maker
allow you to filter out unwanted impressions, reduce your CPC and increase ROI
AdWords Insights
uncover poorly performing keywords and landing pages with low Quality Scores in bulk with this Raven tool
Keyword Niche Finder
use this free tool to find keyword niches that are profitable
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if I missed something please add them in the thread - thanks