Use the Account owner report that you can find at the side bar of your home page to search for the current account owner of your accounts. Then, send the person an email to transfer your accounts to you.
If you own accounts in Salesoforce.com that are not yours and you know who is the right account owner or you are asked to transfer the ownership: Go to the account and follow the instructions in this link .

You have to create a draft account in salesforce and send it to the sales and marketing team.

If you want to type a long text , you could re-size any of the text box (eg summary or details…) by using the small slashed right corner at the bottom of the text box. You need to have installed Google Chrome to have this feature available. Please contact your local Help Desk to have this browser installed on your pc.