http://toutapp.com/
Tools to automate and track the success of repetitive emails. Insteads of copying / pasting the same pitches in email, use tout and track response, opens, clicks, etc on all the different templates. $30/month for 1 user, $50 for 3, $100 for 10.
http://www.hubspot.com/
Fancy digital marketing thingy. Not exactly sure what it is or how well it works, but it's expensive, starts $3k/year.
http://dondodge.typepad.com/the_next_big_thing/2006/03/is_your_product.html
Great article talking about whether a product helps people improve (vitamin) or solves a painful problem (pain killer). The latter being what people buy most easily. Also introduces the concept of pain points, when products go from vitamin to pain killer.
http://featuredusers.com/
Buy or sell ads for twitter followers. Interesting, sales based on impressions.
http://fanpageengine.com/
Pimp your facebook fan page for $40 plus.
http://www.owjo.com/
Sell on facebook and other places. They handle everything for 7% plus 3% + 30c for card processing, but they'll take cards for you, no merchant account required, through elavon.
http://twittergrader.com/
Get a grade for your twitter profile. I was rated 1m out of 8m, whatever that means. Used by pay4tweet.com to gauge price of paid tweets.
http://www.keywords-consultants.co.uk/
Link from Dafydd. Interesting business offering cost per acquisition based online marketing services. Worth pursuing at the relevant time.
http://flashtalking.com/
Tagline "Online advertising technology. made simple". Not quite sure what it does, but looks worth remembering.
http://wordpress.org/extend/plugins/sexybookmarks/
Nice social bookmarking plugin for WordPress. Creates really slick pop-up icons that are half hidden and jump upwards on mouseover. Very cool. From shareaholic.com (and maybe somebody called Josh Jones).
http://unbounce.com/
Create landing pages, starts from $25 a month for 1'000 unique visitors up to $500 a month for 100k uniques. They better generate conversions at those prices!