Although Twitter already has a ‘Who to follow’ section with a few suggestions, the idea is that Connect can give people an all-in-one hub for finding new and interesting accounts.
To come up with the suggestions, Twitter mixes in data such as who you currently follow, tweets you like, popular accounts in your local area, current trends, and more. When you open up the Connect tab, Twitter will show you why it’s making those suggestions, and it says suggestions will get better over time.
Though Twitter previously allowed you to view contacts from your address book, these are now available along with other suggestions through Connect. As before, Twitter will alert you when someone in your address book makes an account for the first time, too.