How to cite regularly published editorials that have no specific titles?
Citing editorials, using APA Style, is actually not that difficult. You just have to specify the relevant type of material ("Editorial" or "Letter to the editor") in square brackets and provide the full date of publication. The latter, in combination with the title of the editorial, naturally serves as a unique identifier for the piece (so, no subtitle is needed). For example, for the first source that you have mentioned in your question, I think that the appropriate citation would be the following (support):


  Last Word. [Editorial]. (2005, June 24). New Hampshire Business
  Review, p. A1.


In regard to the second source that you have mentioned, I think that you incorrectly refer to the entry as summary. IMHO it is simply a bibliographic entry, referring to the corresponding regular published article. In that case, I would cite the original article and not the EBSCO entry.