I'm not affiliated, but https://close.com. Not as overwhelming as Salesforce for a tiny team (https://close.com/compare/salesforce-alternative). Syncs with your email so even if you send an email using Thunderbird, it will appear in Close.io and vice versa. It has nice features like "Leads never emailed" or "No contact > 30 days", etc, although the UI for messages is slightly straining, but nothing horrible.
They also send you a bundle of PDF books that appear to be useful "Sales-Resource-Library". Here's a `tree`:
They also send you a bundle of PDF books that appear to be useful "Sales-Resource-Library". Here's a `tree`:
The product is tight overall.