Inbound marketing software provider HubSpot published some interesting stats on blog subscriptions. Analyzing data from 605 of their customers with blogs (mostly small- and medium-sized businesses), the average email subscriptions for these blogs were 12 times more than the average RSS subscriptions. In a breakdown by industry, the medical / biotech sector shows an even greater ratio of email to RSS subscribers. While not entirely surprising, this data sample further underscores the value of utilizing email as a tool for disseminating blog and open forums content. (CTSI Virtual Home is in the process of evaluating tools for converting RSS feeds into email subscriptions.)