You might consider sending copies to the following:

• authors of the publications you cited in your paper;
• other researchers or scientists who have published on the same subject or whom you know are working in that field;
• those who have supported your research;
• junior researchers who are developing skills in the same field;
• your institute's librarian - especially important in developing countries where there may only be a few journals available;
• your superiors;
• your collaborators;
• others who helped in the study (and whom you thanked, we hope, in the acknowledgements).