Informative and reliable brand name that plays on the word "knowledge".
KnowledgeA has 10 letters and three syllables. Examples of three popular syllable names include Sainsbury's, Armani and Microsoft.
Knowledgea.com is a dot-com domain. Dot com domains are the most valued domain extension in the world, famously used by websites like google.com. Once secured, a dot-com all but guarantees no-one else can outrank you for your own name in the long run.