5 Things You Need to Know Today: May 21

1. Restaurants on Yelp: What are your favorite Jamaica Plain restaurants, and how do they stack up to the Yelp reviews?

2. Blogging: Anyone can blog on Jamaica Plain Patch. Here's how to get started.

3. Weather: The closer we get to June, the warmer it should be, technically speaking.

4. Pan-Mass Signups: Registration is now open for the Pan-Mass Challenge. Now in its 34th year, the annual cross-commonwealth bike-a-thon raises money for cancer research and treatment programs at the Dana-Farber Cancer Institute. There are routes for all age and skill level, ranging from 27 miles to 111 miles. For more information or to register, visit www.pmc.org.

5. Jimmy Fund Walk: To register for the Boston Marathon Jimmy Fund Walk on Sept. 8, or to support a walker, visit JimmyFundWalk.org or call (866) 531-9255. Participants enter the discount code BOSTON for $5 off the registration fee.