Web services toolkit

Blogging: WordPress.com, of course. WP.com gives categories, pages, stats, easy template changes through widgets, and new features keep coming. Blogger is a close second, but it needs to be updated to reflect the evolution of blogs beyond personal diaries.

Email: Gmail. No competition.

Calendar: Google Calendar. It offers multiple calendars, subscriptions, notifications, drag and drop reorganization, one-click event adding and Gmail integration. Kiko has many of these features, but Google Calendar has better network effects – more users, integration with other services, etc.

RSS aggregator: Tie – Bloglines and Google Reader. Bloglines is really easy to use, it's fast, it offers drag-and-drop feed organization, and has special features like email subscriptions, package tracking, etc. Google Reader, while a bit slower and lacking some of Bloglines' features, has a great AJAX interface that allows you to use the keyboard to browse feeds, add labels, etc.