In case you have not yet noticed, Google +1 buttons are now popping up everywhere. And surely enough there is a nice little module for that in Drupal:
http://drupal.org/project/google_plusone [7]
Links:
[1] http://pulse.veltsos.com/category/it/drupal
[2] http://pulse.veltsos.com/category/it/software/foss
[3] http://pulse.veltsos.com/category/it/google
[4] http://pulse.veltsos.com/category/it/social-network
[5] http://pulse.veltsos.com/category/it/social-networks
[6] http://pulse.veltsos.com/category/it/web
[7] http://drupal.org/project/google_plusone
[8] http://linux.philosweb.com/drupal/system/files/image_2_144.png
[9] http://linux.philosweb.com/drupal/system/files/image_4_50.png
[10] http://linux.philosweb.com/drupal/system/files/image_8_14.png