When your user's sign up with their email address, why not make the most of Gravatar? Gravatar is freely available resource to grab a user's avatar based on their email hash. Here I will show you how easy it is to default to a gravatar image, at least until your users upload their own profile photo.

In where I show you how to overwrite 'will_paginate' gem's methods of rendering to show a select list of all pages, including twitter bootstrap friendly css, and previous and next buttons.

Angular JS is a Google sponsored javascript "framework" that aims to simplify and speed-up interactive web application development by providing "out of the box" data binding and event handling while leveraging the declarative nature of HTML and the flexibility of JavaScript for application developers. Here is a video introduction by Igor Minar, presenting at AngularJS NYC meetup (quite long).

I put together my top pics of Schneems' series on Ruby on Rails introductory course centered on Rails use in conjunction with databases.

I've been inspired by the 'growl' like notification system and decided to build my own for my web applications. I've been using this code and style for notification systems in a couple of my projects and it has been well received. I will show you here how to add it to your own applications.

Many developers [in an interview situation] get asked the question 'How would you move mount Fuji?' or one similar in concept. Here I will show you how, the idea is not mine, but it comes from, perhaps, just as much of an unlikely place :)

Yuri (yuri.yup.la) is a satellite image saving web application I buit which is a great little tool if you just want to have a place that you can go back to and reference those cool images you found somewhere on google maps. But as with any service that relies on outside data, data that it can't control, this problem will inevitably crop up....

This is a great podcast/web episode of Mixergy with a very detailed interview with the found of Balsamiq (Peldi Guilizzoni), the UI sketching application.

You can't scale while selecting all the data in you database on an ever increasing table size. When you see queries that get all data from the database it's time take a break and really think about why you are doing that. Do you really need all that information? Or are you then going to filter it and extract only a subset of the data that you are getting? At this point you could probably assume there is a better way of doing that, right in the query. It may not always be the case but it's highly likely that there is a better way to formulate your queries to get you the data you need faster.

Using ActiveRecord on Rails 3, query the database for yesterday's fields.