While many consumers are doing pre-purchase research ahead of going to the grocery store, a much smaller percentage are actually buying groceries online. April 2011 data from AlixPartners found that just 2% of total grocery spending was attributed to the online channel. But while the user base may be small, it’s active. Only twenty-four percent of internet users surveyed by Allrecipes.com in March 2012 had ever bought groceries online, but among those who had done so in the past year, 43% shopped online weekly and 12% monthly. Read the rest at eMarketer.