Mediumgauge has released PSP Filer 5.8 the PSP file management application. So what does this release bring us, many bug fixes, Swedish language support and a disable analog pad feature.
Changelog:
General:
* added Swedish mode
* added a feature to ignore analog pad
Filer:
* added a feature to extract all files in an archive file.
* fixed a bug that [...]

Total_Noob has released an update to his  Ultimate VSH Menu, as the name suggests Ultimate VSH Menu adds a VSH menu with features like, shut-down your PSP, Select game kernel, take screenshots and loads more.
Please read the read me for more details.
Changelog v1.01
- Fixed much bugs
- Ultimate VSH Menu is now much more stable
- Don’t [...]

Dark Alex has released VLF Library v1.0, this is one for you PSP developers. VLF Library v1.0 is just what you need to make your homebrew apps look, well like the PSP XMB.

Source: dark-alex.org

dragula96 has made pong for the earlier GripShift exploit. Quoting dragula96: “it just feels wrong when a Hello World is not followed by Pong”
Have fun Gripshift / PSP-3000 owners
Source: QJ.net

Raing3 has updated his handy PSP Tool eboot, which can: Backup and create the battery EEPROM, Restore Idstorage of the PSP, Create different Magic Memory Sticks, format the memory stick and much much more.
PSP Tool v0.8 changes:

Added options to create DC3, DC4, DC5, DC7, DC8 or an original 1.50 Update Flasher Magic Memory Sticks (read [...]

Its back Cpasjustes Custom Firmware Extender. This great plug-in lets you change PSP CPU speed while in the XMB or in games, listen to your own music in-game, take screenshots, output the PSP screen to a monitor. And the best feature I think, stream ISOs and homebrew over USB. Its also does many other things [...]

PSP Developer ne0h has released an update to Xplora, a PSP file management utility. This updated release now has an option to sort homebrew games and application on the memory stick. Also a complete text editor and support for OGG Vorbis audio.
Source: Exophase

A new update for Ultimate PSPTube has been released. JK108 has fixed several issues and added three more video sharing sites to the mix. Changelog and download below:
Ultimate PSPTube v1.5 changes:

RedTube is now included
StageVu is now included
ThatVideoSite is now included
An optional theme is now included
MyVideo script is fixed after it stopped working because the site [...]

JK108 has released Ultimate PSPTube 1.4, which brings the best of PSPtube with man added video sites, like google video, Daliy motion, MySpace Videos and many more. Even some of your dodgy R18 video websites if that tickles your fancy….And yes we’re a few days late on this one, thanks to gurbz for the tip.

Ultimate [...]

Dark Alex has released PSP Custom Firmware 5.00 M33-4. CFW 5.00 M33-4 brings various bug fixes as well as a new shut down option from the VSH menu. Great for quickly turning off your PSP.
Changes:
- Speed selected for umd/iso was not properly locked in some new games that used scePower_EBD177D6 instead of scePowerSetClockFrequency to change [...]

Mediumgauge has released an update to his PSP Filer application. Now up to version 5.7 which includes a bug fix for that crash when accessing the UMD. Also a new feature where users can expand file names when navigating directory trees. The changelog is below:
general:
* fixed a bug to be frozen while accessing UMD (depending [...]

AhMan has released an update to iR Shell. This update adds some extra enhancements with PSP Slims extra memory and a few bug fixes. Full change log below:
New Features for PSP Slim:
- Added support to homebrews that are built with the option PSP_LARGE_MEMORY, that is, to use the extra slim memory. When running these homebrews [...]

AhMan has released iR Shell 4.7, the complete shell replacement for the PSP. This new version adds support for 5.00 M33 firmware as well as many other changes, listed below.
Changelog:
* Support Dark_AleX latest 5.00M33-3 CFWs. Users of original 5.00M33 & M33-2 should upgrade to M33-3 to avoid incompatibility issues. The latest Popsloader 5.00 is also [...]

Dark_AleX has released an update to the FATMS driver, which stopped working in 5.00 due to a sony file changing its name. What it does is help speed up slower memory cards such as Lexar brands.
Instructions: decrypt 3.71 using psardumper (square option).
Copy the file fatmsmod.prx in the root of memory stick.
Copy FATMS371 to /PSP/GAME or [...]

Dark_AleX has been busy today, with 5.00 M33 released he now brings us an updated PSPStates plug-in which now supports 5.00 M33. As the name suggests PSP states is a PSP save state plug-in that brings save state support to your PSP Slim 5.00 M33. Only the PSP Slim is supported as it has the [...]

We never covered this PSP homebrew application before, maybe because it was last updated over a year ago or before this site even existed…. Nevertheless were pleased to tell you that PSPoste has finally been updated after a while in slumber. if you didn’t know, PSPoste is a full functioning PSP email client designed to [...]

Weltall has released an update to the popular CWCheat universal cheat system. It includes various optimizations to help reduce the size of the binary. Here’s the changelog:
CHANGELOG:
0.2.2 REV.D RELEASE
=====================
- [ALL] Now > 4.x firmwares are checked for the sony msfatmod thread suspend bug and the check of the memory stick space is disabled to avoid [...]

Mediumgauge has just updated PSP Filer to version 5.6 which contains more bugfixes along with additional access to flash0.
Changelog:
general:
– enabled to access flash0 by kernel3 Filer. (thanks to Torch!)
filer:
– fixed a bug that Filer was crashed when removing un-opened folder.
– [...]