Displaying the search engines list is useful but when 50% of them are missing, it's really less interesting.
In your plugin, you display google.com, yahoo.com and bing.com.
Would you mind adding yandex.ru, baidu.com and all the google.* (google.ca, google.co.uk, google.co.in, etc) ?
To do so, use the following patterns:
%google.%, %yahoo.com%, %bing.com%, %yandex.ru%, %baidu.com%.
Thanks in advance.