For maximizing return on investment, all PPC advertisers must have dedicated list of techniques that they follow on a regular basis. Negative keyword research has to be one of the most important to have maximum return on Ad spend.

Negative keywords help advertisers to refine their Ad copies that are served for target keywords in their PPC accounts.

There are various free tools available to know/ identify the unrelated search queries which could be added to your PPC accounts and would potentially save you dollars :-)

Google Adwords Keyword Tool:

It will not only help in identifying Keywords for your target campaign/ad group but also help in identifying various irrelevant keyword phrases.

Search Query Performance Reports:

It is one of the most important tools which would be used for a running campaign. The ‘Search Query Performance Report’ can be pulled from Adwords reports section which will provide in detail the performance data for majority of search queries that triggered to your Ad copies.

Google Analytics:

The Google Analytics advanced filter will provide the details of actual search query in Google Analytics.

Related Searches:

The Related Searches feature could be discovered by clicking on the ‘show options’ box in Google search results pages and then selecting “Related Searches “option. This will provide list in detail of various top performing keywords/ Key phrases related to specific search query.

The Wonder Wheel:

The Wonder Wheel is another feature which could be discovered by clicking on the ‘show options’ Google search results pages and then selecting the Wonder Wheel option.

The Wonder Wheel refines and identifies additional keywords/ Key phrases areas to target in your PPC account, including list of many related long-tail and niche keywords.

Above mentioned tools are helpful in identifying all the irrelevant keywords/ Key phrases that could be costing you a lot!