Delicious

Delicious is a service that allows you to store and share bookmarks. Founded in 2003, then acquired by Yahoo in 2005, the site is similar in many ways to Digg, in that it is a form of "content curation", allowing users to find topics and links that have become popular on the web. It also allows users to access their bookmarks from anywhere, unlike the bookmarking abilities found in most browsers.
Since it's inception, Delicious has been updated at a frequent rate. This philosophy of "perpetual beta" has allowed them to consistently improve and expand their services. Recently they added the ability to save bookmarks sent via Yahoo Messenger directly to delicious, and are currently working on an extension for Google Chrome. What is interesting is that, according to the Delicious blog, demand for new features such as the Google Chrome extension has forced them to release features that are not fully functional. This is at odds with the traditional software development model, but offers some strong benefits. By releasing features with known issues, the developers can pinpoint problems with feedback from the user community. A consistent update schedule also keeps users interested and excited by changes.


Delicious
Google Chrome extension

Paypal

Paypal has become the ubiquitous method for transferring money over the internet. Anyone who has bought anything off Ebay, Etsy, or a huge variety of online sellers will most likely have a Paypal account. Created in 1998, the idea was simple and beautiful: send money via email. It's a little bit more complex than that, but that's the essential spirit of the service. There are currently more than 153 million Paypal accounts worldwide.
Paypal has responded interestingly to the rise in mobile technology. The newest version of the Paypal iPhone app allows you to transfer money to another persons account by simply touching two phones together, as opposed to manually entering the necessary data. It also allows the user to transfer money between their bank account and Paypal account. If the technology continues to grow at the rate it is currently, this sort of transfer could be incredibly useful to small businesses in the future.

Haiku:
Buying online made
Simple, except I always
Forget my password

PayPal Transfers Made Simple
Paypal