There are a few ways to add items to your Zotero library. The usual way is through your web browser, but you can also:
Aside from items such as books, articles, and web sites, you can also add notes and annotations.
Zotero displays icons for different item types including:
Items will be saved to Zotero in the format suggested by the icon.
If it saves incorrectly, you can change the Item Type field at the top of the right column.
Zotero's has mobile versions for iOS and Android (in beta).
Zotero's support page has links to all the documentation.
Search the Zotero forums to find answers to common questions, or to submit a "New Discussion".
For more options and answers to common problems, go to our Ask & Services.