Blue??? Monday

Not sure "blue" is the right word, but a little discouraged maybe.  I have been getting hundreds of views on my sites and that has kept me high and feeling good.  But suddenly it hit me that all these views are not making sales.  I am blogging, Tweeting, paying for advertising, bugging my friends and family, etc. I get lots of verbal kudos on my pieces, but not sales.  What do you think?