Here is a great selection of gift certificates from local eateries.  You will find:

$25 for Full Moon - 344 Huron Avenue, Dinner for two at Border Cafe, 32 Church St., Cambridge,  $40 for the Druid, 1357 Cambridge St., $50 to the Craigie Street Biston, 5 Craigie Circle,  $25 to Grendels Den and two $10 certificates to the 1369 Coffee House, 1369 Cambridge St.