I think we read the same book. Probably "Trading in the Zone" or one of those. I never ended up day trading much, but I sure as hell got that message loud and clear.

I used to follow a lot, and drank a bunch of the kool-aid from Jigsaw Trading. Now I read very little, other than the economic calendar for US/Canada/Europe each morning. I'm looking for high volatility events(such as FOMC, GDP, etc) so I can make sure I am not in the market when they take place.

I haven't read any books about algorithmic trading(but I've read a ton about trading in general...favorite is Mark Douglas's 'Trading in the Zone'). Most of my introduction to algorithmic trading came from a trading platform(Multicharts.NET). I wasn't a .NET programmer specifically, but they include the source code for all indicators/signals that ship with the product. This made it really easy to tinker with automated trading signals, and I don't think I would have ever attempted it without that exposure.

Also, you didn't ask for this piece of advice...but: be very cautious of tips from any blog or news outlet. The people producing those are under tremendous pressure to produce "something", even when there isn't any insight to be had for a day/week/event/etc. They will produce something anyway, relevance be damned. If you needed some help/ideas, you would be better served joining a live trading group. Many of these are free, and they give you a chance to listen(and speak) to other traders, all trading at the same time, usually with the same instruments. I learned some things from GPI Trading Group(http://www.gpitradinggroup.com/) that saved me a lot of time and headache. They are focused on the ZB(bond futures, not equities), but back at that time so was I. I got a lot of feedback from their members about my indicators and automated signals I was working on, and much of it was invaluable.

I want to ask, what is it that you consider the "investing perspective?" Unless you _never_ plan on closing out your position, then at _some_ point, you will have to sell (or cover, as the case may be). My point is, even if buy-and-hold investing suits your personality more than any other style, technically, you are still a trader. Or more specifically, if you want to learn to reliably make money more often than not, you are going to need to learn to think like a trader, even if you prefer to fancy yourself an investor.

Things to note:
This is going to be hard work. It will take time (years for most). Take notes on everything you think and do (keep a trading journal).

You will loose money at first (consider it your "tuition").

Don't put too much weight on the publication date of a resource. Certainly, some specifics of market implementation have changed over the years, but as a whole, human nature (fear and greed) is the same now as it was when the first humans decided to build financial markets.

I know you didn't mention books as a preferred learning source, but, IMO they contain the most condensed stores of knowledge by the most reputable people (read: retired and/or independent) on this subject. Here's my list of recommendations:

High Probability Trading by Marcel Link

How Technical Analysis Works by Bruce Kamich

How to Buy by Justin and Robert Mamis (out of print; worth every penny)

When to Sell by Justin and Robert Mamis

Trading in the Zone by Mark Douglas (don't underestimate the importance of getting your psyche under control!)

Japanese Candlestick Charting Techniques by Steve Nison
Market Wizards by Jack Schwager (these are well worth reading)

And of course, the timeless classic, Reminiscences of a Stock Operator by Edwin Lefevre

Good luck!