While this is not a scientific poll, I found this interesting.
In a recent Polldaddy survey - when asked "Which is your preferred E-Mail Service provider ?"
most prefer Yahoo! over other web based online e-mail accounts.
Total Votes: 7,930
Overall, I like the simplicity of Gmail. Frequently, I have used the documents feature in Gmail. As for Yahoo!, I really like the 'Notepad' feature. Hotmail/Live.com always seemed bloated and slow.
I have accounts with Hotmail, Live.com, Yahoo!, Gmail, GMX. With some services I have multiple accounts.
What do use and why?