US Patent 8103650 Generating targeted paid search campaigns

In particular embodiments, advertising groups may be formed based on keywords. Access a plurality of keywords, each keyword comprising one or more words and describing one or more characteristics or features of particular advertising subject matter. Annotate each of the keywords with one or more labels selected from a plurality of labels, each label comprising one or more words and describing one or more aspects of or one or more categories or concepts represented by the keyword. Group the keywords into one or more keyword groups based on similarities between the labels of the keywords, each keyword group comprising one or more of the keywords. Form one or more advertising groups from the keyword groups, comprising from each of the keyword groups, form one or more of the advertising groups, each of the advertising groups comprising one or more of the keywords in the keyword group.